Knowledge (XXG)

Hawking radiation

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7463: 712: 3266:. The information content of a black hole appears to be lost when it dissipates, as under these models the Hawking radiation is random (it has no relation to the original information). A number of solutions to this problem have been proposed, including suggestions that Hawking radiation is perturbed to contain the missing information, that the Hawking evaporation leaves some form of remnant particle containing the missing information, and that information is allowed to be lost under these conditions. 42: 3125: 929: 6960: 3334:, that photon's frequency stays regular only if the mode is extended back into the past region where no observer can go. That region seems to be unobservable and is physically suspect, so Hawking used a black hole solution without a past region that forms at a finite time in the past. In that case, the source of all the outgoing photons can be identified: a microscopic point right at the moment that the black hole first formed. 725: 2839: 833: 1621: 7451: 2054: 3120:{\displaystyle t_{\mathrm {ev} }={\frac {5120\pi G^{2}M^{3}}{\hbar c^{4}}}={\frac {480c^{2}V}{\hbar G}}=5120\pi \,t_{\text{P}}\left({\frac {M}{m_{\text{P}}}}\right)^{3}\approx 3.396\times 10^{-16}\,\mathrm {s} \ \left({M \over \mathrm {kg} }\right)^{3}\approx 2.140\times 10^{67}\,{\text{years}}\ \left({\frac {M}{M_{\odot }}}\right)^{3},} 1301: 3378:(10 or 11), the values of Planck constants can be radically different, and the formulas for Hawking radiation have to be modified as well. In particular, the lifetime of a micro black hole with a radius below the scale of the extra dimensions is given by equation 9 in Cheung (2002) and equations 25 and 26 in Carr (2005). 1379: 3345:
solution. Matter that falls on the white hole accumulates on it, but has no future region into which it can go. Tracing the future of this matter, it is compressed onto the final singular endpoint of the white hole evolution, into a trans-Planckian region. The reason for these types of divergences is
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of Hawking radiation, if the mode is traced back in time, has a frequency that diverges from that which it has at great distance, as it gets closer to the horizon, which requires the wavelength of the photon to "scrunch up" infinitely at the horizon of the black hole. In a maximally extended external
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The quantum fluctuations at that tiny point, in Hawking's original calculation, contain all the outgoing radiation. The modes that eventually contain the outgoing radiation at long times are redshifted by such a huge amount by their long sojourn next to the event horizon that they start off as modes
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is compressed into a volume small enough that the escape velocity is greater than the speed of light. Nothing can travel that fast, so nothing within a certain distance, proportional to the mass of the black hole, can escape beyond that distance. The region beyond which not even light can escape is
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Assuming that a small black hole has zero entropy, the integration constant is zero. Forming a black hole is the most efficient way to compress mass into a region, and this entropy is also a bound on the information content of any sphere in space time. The form of the result strongly suggests that
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applied to black-hole horizons. Close to the event horizon of a black hole, a local observer must accelerate to keep from falling in. An accelerating observer sees a thermal bath of particles that pop out of the local acceleration horizon, turn around, and free-fall back in. The condition of local
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There exist alternative physical pictures that give the Hawking radiation in which the trans-Planckian problem is addressed. The key point is that similar trans-Planckian problems occur when the modes occupied with Unruh radiation are traced back in time. In the Unruh effect, the magnitude of the
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to show that in theory, instead of cancelling each other out normally, the antimatter and matter fields were disrupted by the black hole, causing antimatter and matter particles to "blip" into existence as a result of the imbalanced matter fields, and drawing energy from the disruptor itself: the
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or larger. Writing in 1976, Page using the understanding of neutrinos at the time erroneously worked on the assumption that neutrinos have no mass and that only two neutrino flavors exist, and therefore his results of black hole lifetimes do not match the modern results which take into account
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In September 2010 an experimental set-up created a laboratory "white hole event horizon" that the experimenters claimed was shown to radiate an optical analog to Hawking radiation. However, the results remain unverified and debatable, and its status as a genuine confirmation remains in doubt.
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Some pre-1998 calculations, using outdated assumptions about neutrinos, were as follows: If black holes evaporate under Hawking radiation, a solar mass black hole will evaporate over 10 years which is vastly longer than the age of the universe. A supermassive black hole with a mass of 10 (100
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The field theory is defined by a local path integral, so if the boundary conditions at the horizon are determined, the state of the field outside will be specified. To find the appropriate boundary conditions, consider a stationary observer just outside the horizon at position
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The gravitational redshift is given by the square root of the time component of the metric. So for the field theory state to consistently extend, there must be a thermal background everywhere with the local temperature redshift-matched to the near horizon temperature:
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black holes (to escape), effectively draining energy from the black hole. In addition, not all of the particles were close to the event horizon, and the ones that were could not escape. In effect, this energy acted as if the black hole itself was slowly
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during the collapse of superclusters of galaxies. Even these would evaporate over a timescale of up to 2 × 10 years. Post-1998 science modifies these results slightly; for example, the modern estimate of a solar-mass black hole lifetime is 10 years.
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The horizon is not a special boundary, and objects can fall in. So the local observer should feel accelerated in ordinary Minkowski space by the principle of equivalence. The near-horizon observer must see the field excited at a local temperature
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thermal equilibrium implies that the consistent extension of this local thermal bath has a finite temperature at infinity, which implies that some of these particles emitted by the horizon are not reabsorbed and become outgoing Hawking radiation.
2544:-dependent manner as frequency decreases, especially when the wavelength becomes comparable to the size of the event horizon. Page concluded that primordial black holes could survive to the present day only if their initial mass were roughly 5633:
Belgiorno, Francesco D.; Cacciatori, Sergio Luigi; Clerici, Matteo; Gorini, Vittorio; Ortenzi, Giovanni; Rizzi, Luca; Rubino, Eleonora; Sala, Vera Giulia; Faccio, Daniele (2010). "Hawking radiation from ultrashort laser pulse filaments".
1616:{\displaystyle (\mathrm {d} s)^{2}=-\left({\frac {\rho }{4M}}\right)^{2}\,(\mathrm {d} t)^{2}+(\mathrm {d} \rho )^{2}+(\mathrm {d} X_{\perp })^{2}=-\rho ^{2}\,(\mathrm {d} \tau )^{2}+(\mathrm {d} \rho )^{2}+(\mathrm {d} X_{\perp })^{2},} 3346:
that modes that end at the horizon from the point of view of outside coordinates are singular in frequency there. The only way to determine what happens classically is to extend in some other coordinates that cross the horizon.
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Unlike most objects, a black hole's temperature increases as it radiates away mass. The rate of temperature increase is exponential, with the most likely endpoint being the dissolution of the black hole in a violent burst of
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and rotational energy of black holes and is therefore also theorized to cause black hole evaporation. Because of this, black holes that do not gain mass through other means are expected to shrink and ultimately vanish.
2536:. The time for the event horizon or entropy of a black hole to halve is known as the Page time. The calculations are complicated by the fact that a black hole, being of finite size, is not a perfect black body; the 113: 2717:
The Bekenstein–Hawking luminosity of a black hole, under the assumption of pure photon emission (i.e. that no other particles are emitted) and under the assumption that the horizon is the radiating surface is:
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The formulas from the previous section are applicable only if the laws of gravity are approximately valid all the way down to the Planck scale. In particular, for black holes with masses below the Planck mass
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ought to create and emit particles. Hawking would find aspects of both of these arguments true once he did the calculation himself. Due to Bekenstein's contribution to black hole entropy, it is also known as
2789: 2127: 2049:{\displaystyle T(r')={\frac {1}{4\pi {\sqrt {2Mr\left(1-{\frac {2M}{r}}\right)}}}}{\sqrt {\frac {1-{\frac {2M}{r}}}{1-{\frac {2M}{r'}}}}}={\frac {1}{4\pi {\sqrt {2Mr\left(1-{\frac {2M}{r'}}\right)}}}}.} 1698: 3860:
Physically, the Gullstrand–PainlevĂ© metric describes space falling into the Schwarzschild black hole at the Newtonian escape velocity. ... At the horizon, the velocity equals the speed of light.
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Under experimentally achievable conditions for gravitational systems, this effect is too small to be observed directly. It was predicted that Hawking radiation could be studied by analogy using
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Since we have assumed a maximum scale of gravitational binding – for instance, superclusters of galaxies – black hole formation eventually comes to an end in our model, with masses of up to 10
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are predicted to be larger emitters of radiation than larger black holes and should dissipate faster per their mass. As such, if small black holes exist such as permitted by the hypothesis of
483: 2197: 1368: 1296:{\displaystyle (\mathrm {d} s)^{2}=-\left(1-{\frac {2M}{r}}\right)\,(\mathrm {d} t)^{2}+{\frac {1}{\left(1-{\frac {2M}{r}}\right)}}\,(\mathrm {d} r)^{2}+r^{2}\,(\mathrm {d} \Omega )^{2}.} 2484: 3318:
that change frequency relative to other coordinates that are regular across the horizon. This is necessarily so, since to stay outside a horizon requires acceleration that constantly
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with a wavelength much shorter than the Planck length. Since the laws of physics at such short distances are unknown, some find Hawking's original calculation unconvincing.
1062:'s attention, leading him to think about radiation due to this formalism. Hawking's subsequent theory and report followed a visit to Moscow in 1973, where Soviet scientists 948:
in general relativity, one can conceptualize the event horizon as the region beyond which space is infalling faster than the speed of light. (Although nothing can travel
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is the number of large extra dimensions. This formula is now consistent with black holes as light as a few TeV, with lifetimes on the order of the "new Planck time" ~
936:. Outside/inside the horizon (red), the infalling speed is less/greater than the speed of light. At the event horizon, the infalling speed equals the speed of light. 819:, they ought to lose mass more rapidly as they shrink, leading to a final cataclysm of high energy radiation alone. Such radiation bursts have not yet been detected. 7110: 3341:
The trans-Planckian problem is nowadays mostly considered a mathematical artifact of horizon calculations. The same effect occurs for regular matter falling onto a
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near the black hole's horizon. This is due to the peculiar behavior there, where time stops as measured from far away. A particle emitted from a black hole with a
340: 7094: 7055: 4443: 6429:→ studies the deviation of a loop quantized black hole from Hawking radiation. A novel observable quantum effect of black hole quantization is introduced. 3543:
Based on the fluctuations of the horizon area, a quantum black hole exhibits deviations from the Hawking radiation spectrum that would be observable were
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space faster than light, space itself can infall at any speed.) Once matter is inside the event horizon, all of the matter inside falls inevitably into a
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Fermi-LAT collaboration (January 31, 2018). "Search for Gamma-Ray Emission from Local Primordial Black Holes with the Fermi Large Area Telescope".
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to be observed. The quantum effects are centered at a set of discrete and unblended frequencies highly pronounced on top of the Hawking spectrum.
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Carr, Bernard J. (2005). "Primordial Black Holes – Recent Developments". In Pisin Chen; Elliott Bloom; Greg Madejski; Vahe Patrosian (eds.).
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Ida, Daisuke; Oda, Kin'ya; Park, Seong-chan (2006). "Rotating Black Holes at Future Colliders. III. Determination of Black Hole Evolution".
956:, a place of infinite curvature and zero size, leaving behind a warped spacetime devoid of any matter; a classical black hole is pure empty 7428: 7364: 7304: 6045:
Barrau, AurĂ©lien; Grain, Julien; Alexeyev, Stanislav O. (2004). "Gauss–Bonnet black holes at the LHC: beyond the dimensionality of space".
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Barrau, Aurélien; Féron, Chloé; Grain, Julien (2005). "Astrophysical Production of Microscopic Black Holes in a Low-Planck-Scale World".
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Our current understanding of quantum physics can be used to investigate what may happen in the region around the event horizon. In 1974,
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When particles escape, the black hole loses a small amount of its energy and therefore some of its mass (mass and energy are related by
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Ida, Daisuke; Oda, Kin'ya; Park, Seong-chan (2005). "Rotating black holes at future colliders. II. Anisotropic scalar field emission".
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Barceló, Carlos; Liberati, Stefano; Visser, Matt (2003). "Towards the observation of Hawking radiation in Bose–Einstein condensates".
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Brout, Robert; Massar, Serge; Parentani, Renaud; Spindel, Philippe (1995). "Hawking radiation without trans-Planckian frequencies".
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Ida, Daisuke; Oda, Kin'ya; Park, Seong-chan (2003). "Rotating black holes at future colliders: Greybody factors for brane fields".
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began to mount half a century later, and these objects are of current interest primarily because of their compact size and immense
2724: 428: 7498: 7209: 7166: 7035: 6679: 2069: 1812:{\displaystyle T={\frac {\alpha }{2\pi }}={\frac {1}{2\pi \rho }}={\frac {1}{4\pi {\sqrt {2Mr\left(1-{\frac {2M}{r}}\right)}}}},} 41: 4393:... the timescale for black holes to radiate away all their energy ranges from to 10 years for black holes of one solar mass ... 7503: 7225: 5603: 3875:, World Scientific (2005). The tunneling process is described on pp.26–28, and described as Black Hole Evaporation on pp.48–49. 3569: 335: 2611:
emitted by a black hole in the form of Hawking radiation can be estimated for the simplest case of a nonrotating, non-charged
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Ashtekar, Abhay; Baez, John Carlos; Corichi, Alejandro; Krasnov, Kirill (1998). "Quantum Geometry and Black Hole Entropy".
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Proceedings of the 22nd Texas Symposium on Relativistic Astrophysics at Stanford, Stanford California, December 13–17, 2004
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may be able to create micro black holes and observe their evaporation. No such micro black hole has been observed at CERN.
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Page, Don N. (1976). "Particle emission rates from a black hole: Massless particles from an uncharged, nonrotating hole".
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is the mass of the black hole. It is worth mentioning that the above formula has not yet been derived in the framework of
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of blackbody radiation, the above formula for the temperature of the radiation, and the formula for the surface area of a
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refined this estimate by calculating the power produced, and the time to evaporation, for a non-rotating, non-charged
1657:. The metric describes a frame that is accelerating to keep from falling into the black hole. The local acceleration, 729: 220: 140: 7045: 7040: 6285:
Nicolaevici, Nistor (2003). "Blackbody spectrum from accelerated mirrors with asymptotically inertial trajectories".
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developed a theory and reported that the black holes should have an entropy. Bekenstein's theory and report came to
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For an alternative derivation and more detailed discussion of Hawking radiation as a form of Unruh radiation, see:
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is set to cancel out various constants such that the Bekenstein–Hawking entropy formula is reproduced. However,
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Thus a field theory defined on a black-hole background is in a thermal state whose temperature at infinity is
387: 5797:(1976). "Particle emission rates from a black hole: Massless particles from an uncharged, nonrotating hole". 4547: 4100:(1976). "Particle emission rates from a black hole: Massless particles from an uncharged, nonrotating hole". 925:; an observer outside it cannot observe, become aware of, or be affected by events within the event horizon. 7217: 7158: 7102: 6889: 6631: 5636: 5239: 5182:; Thomas, Scott (2002). "High energy colliders as black hole factories: The end of short distance physics". 4995: 4848: 4481: 4035:
de Witt, Bryce (1980). "Quantum gravity: the new synthesis". In Hawking, Stephen W.; Israel, Werner (eds.).
3937: 3281: 2803: 928: 653: 5698: 3477:{\displaystyle \tau \sim {\frac {1}{M_{*}}}\left({\frac {M_{\text{BH}}}{M_{*}}}\right)^{\frac {n+3}{n+1}},} 453: 6571: 6467: 5539:"Observation of stationary spontaneous Hawking radiation and the time evolution of an analogue black hole" 3548: 3375: 3210: 2819: 984: 906: 816: 807:
For all except the smallest black holes, this happens extremely slowly. The radiation temperature, called
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MacGibbon, Jane H.; Carr, B. J.; Page, Don N. (2008). "Do Evaporating Black Holes Form Photospheres?".
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Kolobov, Victor I.; Golubkov, Katrine; Muñoz de Nova, Juan Ramón; Steinhauer, Jeff (March 2021).
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See page 596: table 1 and the "black hole decay" section and previous sentence on that page in
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corrections to the entropy and radiation of black holes have been computed based on the theory.
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Muñoz de Nova, Juan Ramón; Golubkov, Katrine; Kolobov, Victor I.; Steinhauer, Jeff (May 2019).
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Barrau, AurĂ©lien; et al. (2003). "Antideuterons as a probe of primordial black holes".
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Barrau, Aurélien; Boudoul, Gaëlle (2002). "Some aspects of primordial black hole physics".
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From the black-hole temperature, it is straightforward to calculate the black-hole entropy
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Kanti, Panagiota (2004). "Black Holes in Theories with Large Extra Dimensions: a Review".
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A. Barrau & J. Grain explain how the Hawking radiation could be detected at colliders
6520: 6489: 6462: 6435: 5407:"Observation of quantum Hawking radiation and its entanglement in an analogue black hole" 443: 6480: 6463:"Focus on Classical and Quantum Analogs for Gravitational Phenomena and Related Effects" 6408: 6348: 6300: 6260: 6211: 6170: 6120: 6070: 6004: 5862: 5812: 5769: 5659: 5564: 5491: 5466:"Observation of thermal Hawking radiation and its temperature in an analogue black hole" 5434: 5375: 5262: 5207: 5128: 5073: 5018: 4969: 4928: 4871: 4808: 4753: 4716: 4668: 4524: 4420: 4357: 4308: 4245: 4192: 4115: 3990: 3739: 1046:
across) would be in equilibrium at 2.7 K, absorbing as much radiation as it emits.
987:), black holes in certain cases (and perhaps in general) are equivalent to solutions of 7467: 7070: 6904: 6372:
about gravity in small scales including the deviation from Hawking radiation effect by
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Dimopoulos, Savas; Landsberg, Greg (2001). "Black Holes at the Large Hadron Collider".
2811: 2558: 2541: 964: 716: 683: 678: 366: 230: 6308: 5727:"Artificial event horizon emits laboratory analog to theoretical black hole radiation" 5103:
Ansari, Mohammad H. (2008). "Generic degeneracy and entropy in loop quantum gravity".
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are analogous to light in a gravitational black hole and the flow of an approximately
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and the Hawking effect both talk about field modes in the superficially stationary
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Barrau, AurĂ©lien; et al. (2002). "Antiprotons from primordial black holes".
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Ansari, Mohammad H. (2007). "Spectroscopy of a canonically quantized horizon".
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However, according to the conjectured gauge-gravity duality (also known as the
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is inside the event horizon, it cannot escape. It is named after the physicist
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Jacobson, Theodore (1991). "Black-hole evaporation and ultrashort distances".
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Thermal radiation believed to be emitted by black holes due to quantum effects
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Kapusta, Joseph (1999). "The Last Eight Minutes of a Primordial Black Hole".
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For an accessible discussion of the Unruh effect and Hawking radiation, see:
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Black Holes, White Dwarfs, and Neutron Stars: The Physics of Compact Objects
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Cheung, Kingman (2002). "Black Hole Production and Large Extra Dimensions".
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An Introduction to Black Holes. Information and the String Theory Revolution
3796:"Black Hole Entropy and 2D Conformal Field Theory - Towards Quantum Gravity" 3315: 3300: 3244: 3239:
by showing how black holes interact thermally with the rest of the universe.
957: 793: 259: 5675: 5515: 5278: 4887: 4824: 4769: 4373: 4261: 2517:). Consequently, an evaporating black hole will have a finite lifespan. By 6802: 6601: 6035: 5995: 5946: 5897: 4919: 4628: 3304: 2554: 886: 628: 438: 278: 6091:→ searches for new physics (quantum gravity) with primordial black holes 5323:"Stephen Hawkings 50 bet on the world the universe and the God particle" 4593: 3781:"John Michell: Country Parson Described Black Holes in 1783 | AMNH" 3297: 6399: 6251: 6202: 6161: 6111: 6061: 5253: 5198: 5064: 4862: 4799: 4236: 4222:
Page, Don N. (6 December 1993). "Information in Black Hole Radiation".
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The black hole is the background spacetime for a quantum field theory.
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infalling into a Schwarzschild black hole at the Newtonian escape speed
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Quantum Field Theory in Curved Spacetime and Black Hole Thermodynamics
2431:, so the entropy of a black hole is proportional to its surface area: 5777: 3747: 3609: 3326: 2628: 1020: 917: 913: 3209:. This is why some astronomers are searching for signs of exploding 2631:(the black hole's event horizon), several equations can be derived. 6012: 5555: 5482: 5425: 5164: 4960: 4568: 901:. Early research into black holes were done by individuals such as 6975: 6526: 5853: 5650: 4299: 3981: 3544: 3225: 2342:
The heat energy that enters serves to increase the total mass, so
1016: 927: 4944:"Black Hole Evaporation: A Perspective from Loop Quantum Gravity" 3496:
is the low-energy scale, which could be as low as a few TeV, and
3247:. A complete description of this dissolution requires a model of 3965:"Effective Temperature, Hawking Radiation and Quasinormal Modes" 3589: 3565: 3251:, however, as it occurs when the black hole's mass approaches 1 1036: 800: 6979: 6530: 4475: 4473: 4471: 3367:), they result in impossible lifetimes below the Planck time (~ 4342:
Frautschi, Steven (1982). "Entropy in an Expanding Universe".
826: 5877:→ links between primordial black holes and the early universe 4611:– via The University of Manchester's Research Explorer. 4499: 4497: 4495: 4014:"Hawking-Bekenstein radiation and the shifting of a paradigm" 3231:
Black hole evaporation has several significant consequences:
3702:"A conversation with Dr. Stephen Hawking & Lucy Hawking" 2784:{\displaystyle P={\frac {\hbar c^{6}}{15360\pi G^{2}M^{2}}}} 6383:(2007). "Spectroscopy of a canonically quantized horizon". 4012:
Nature, Research Communities by Springer (March 14, 2018).
3142:
are the mass and (Schwarzschild) volume of the black hole,
2565:
figure for the age of the universe yielded a mass bound of
2122:{\displaystyle T(\infty )={\frac {1}{4\pi {\sqrt {2Mr}}}},} 3284:
is the issue that Hawking's original calculation includes
3262:
The simplest models of black hole evaporation lead to the
3235:
Black hole evaporation produces a more consistent view of
6281:→ determination of black hole's life and extra dimensions 5602:
Emerging Technology from the arXiv (September 27, 2010).
3885:
Bekenstein, A. (1972). "Black holes and the second law".
3512:
A detailed study of the quantum geometry of a black hole
811:, is inversely proportional to the black hole's mass, so 6461:
Leonhardt, Ulf; Maia, Clovis; Schuetzhold, Ralf (2010).
2490:
the physical description of a gravitating theory can be
6368:
consists of the recent developments and predictions of
3726:
Hawking, S. W. (1974-03-01). "Black hole explosions?".
3622:). Observations of Hawking radiation were reported, in 3307:
frequency, and therefore a trans-Planckian wavelength.
2557:. A 2008 calculation using the particle content of the 3520:. Loop-quantization does not reproduce the result for 7439: 5825:→ first detailed studies of the evaporation mechanism 5699:"Ultrafast Laser Pulse Makes Desktop Black Hole Glow" 3387: 3160:
are Planck mass and Planck time. A black hole of one
2842: 2727: 2643: 2440: 2351: 2276: 2211: 2152: 2072: 1839: 1701: 1382: 1319: 1111: 51: 4701:(1985). "On the quantum structure of a black hole". 4548:"Planck 2015 results: XIII. Cosmological parameters" 2833:
The time that the black hole takes to dissipate is:
1023:); in fact, such a black hole would absorb far more 1015:) has a temperature of only 60 nanokelvins (60 7406: 7383: 7316: 7273: 7250: 7193: 7086: 7079: 7013: 6917: 6862: 6844: 6821: 6788: 6781: 6723: 6688: 6645: 6564: 6457:→ Hawking radiation evaporation formula derivation. 4643:Helfer, Adam D. (2003). "Do black holes radiate?". 4444:"Ask Ethan: How Do Black Holes Actually Evaporate?" 3819:. New York: Alfred A. Knopf, Penguin Random House. 5840:Monthly Notices of the Royal Astronomical Society 3476: 3303:, if traced back to the horizon, must have had an 3119: 2783: 2706: 2478: 2416: 2331: 2248: 2191: 2121: 2048: 1811: 1615: 1362: 1295: 107: 5300:Barrau, AurĂ©lien; Grain, Julien (November 2004). 3576:. As of Jan 1st, 2023, none have been detected. 2249:{\displaystyle T_{\text{H}}={\frac {1}{8\pi M}}.} 784:. This is counterintuitive because once ordinary 4039:General Relativity: An Einstein Centenary Survey 2427:The radius of a black hole is twice its mass in 2263:. The change in entropy when a quantity of heat 909:who modeled black holes as having zero entropy. 893:. Evidence for the astrophysical objects termed 7111:Black Holes and Baby Universes and Other Essays 6433:Shapiro, Stuart L.; Teukolsky, Saul A. (1983). 4482:"Viktor T. Toth - Hawking radiation calculator" 2192:{\displaystyle T(\infty )={\frac {1}{8\pi M}}.} 6141:→ evaporating black holes and extra-dimensions 3721: 3719: 6991: 6542: 2798:is the luminosity, i.e., the radiated power, 1363:{\displaystyle r=2M+{\frac {\rho ^{2}}{8M}}.} 980:(although it actually came from outside it). 750: 8: 4336: 4334: 4069:Gubser, Steven S.; Pretorius, Frans (2017). 4029: 4027: 3810: 3808: 3350:temperature can be calculated from ordinary 996: 4092: 4090: 2479:{\displaystyle S=\pi R^{2}={\frac {A}{4}}.} 885:Modern black holes were first predicted by 7083: 6998: 6984: 6976: 6785: 6549: 6535: 6527: 3838: 3836: 3224:must be less than 0.8% of the mass of the 3185:to evaporate—much longer than the current 2555:3 flavors of neutrinos with nonzero masses 757: 743: 309: 199: 29: 6498: 6488: 6398: 6250: 6201: 6160: 6110: 6098:International Journal of Modern Physics A 6060: 6034: 5994: 5945: 5896: 5870: 5852: 5649: 5554: 5481: 5424: 5365: 5353:International Journal of Modern Physics A 5252: 5197: 5163: 5118: 5063: 5008: 4977: 4959: 4918: 4861: 4798: 4658: 4627: 4567: 4298: 4235: 3980: 3969:International Journal of Modern Physics D 3444: 3432: 3422: 3416: 3403: 3394: 3386: 3216:However, since the universe contains the 3108: 3096: 3087: 3074: 3073: 3067: 3048: 3034: 3029: 3016: 3015: 3006: 2987: 2975: 2966: 2955: 2950: 2921: 2911: 2899: 2884: 2874: 2861: 2848: 2847: 2841: 2772: 2762: 2744: 2734: 2726: 2694: 2693: 2669: 2659: 2649: 2648: 2642: 2463: 2454: 2439: 2402: 2384: 2373: 2372: 2352: 2350: 2318: 2317: 2291: 2288: 2277: 2275: 2225: 2216: 2210: 2168: 2151: 2100: 2088: 2071: 2013: 1991: 1979: 1952: 1929: 1919: 1894: 1872: 1860: 1838: 1781: 1759: 1747: 1726: 1708: 1700: 1604: 1594: 1585: 1573: 1561: 1549: 1537: 1533: 1527: 1511: 1501: 1492: 1480: 1468: 1456: 1444: 1440: 1434: 1415: 1398: 1386: 1381: 1341: 1335: 1318: 1284: 1272: 1268: 1262: 1249: 1237: 1233: 1211: 1195: 1186: 1174: 1170: 1150: 1127: 1115: 1110: 873:Learn how and when to remove this message 96: 87: 75: 56: 50: 5604:"First Observation of Hawking Radiation" 3666:, other extractions of black-hole energy 3354:field theory, and is not controversial. 973:quantum field theory in curved spacetime 7446: 7341:Stephen Hawking: Master of the Universe 7095:The Large Scale Structure of Space–Time 6041:→ cosmology with primordial black holes 4506:"Some Simple Black Hole Thermodynamics" 4018:Research Communities by Springer Nature 3692: 2932: 2892: 2737: 2662: 379: 353: 312: 258: 32: 7357:Into the Universe with Stephen Hawking 5790:→ Hawking's first article on the topic 4180:Communications in Mathematical Physics 4043:. Cambridge University Press. p.  3845:"A Black Hole is a Waterfall of Space" 3775: 3773: 3547:from Hawking radiation of evaporating 3228:– approximately the mass of the Moon. 2634:The Hawking radiation temperature is: 2059:The inverse temperature redshifted to 1086:Hawking radiation is dependent on the 7325:God, the Universe and Everything Else 5697:Grossman, Lisa (September 29, 2010). 5321:Henderson, Mark (September 9, 2008). 4913:. Vol. 041213. pp. 89–100. 3963:Corda, Christian (October 29, 2012). 3218:cosmic microwave background radiation 1025:cosmic microwave background radiation 7: 7365:Brave New World with Stephen Hawking 7066:Penrose–Hawking singularity theorems 3255:, its radius will also approach two 1373:The local metric to lowest order is 855:adding citations to reliable sources 7202:George's Secret Key to the Universe 5835:"Black holes in the early universe" 2136:is the near-horizon position, near 7175:Brief Answers to the Big Questions 7056:Gibbons–Hawking–York boundary term 5754:(1974). "Black hole explosions?". 4175:"Particle creation by black holes" 3919:In the same year, he proposed his 3038: 3035: 3017: 2852: 2849: 2695: 2650: 2385: 2374: 2353: 2319: 2292: 2278: 2159: 2079: 1586: 1562: 1538: 1493: 1469: 1445: 1387: 1277: 1273: 1238: 1175: 1116: 912:A black hole can form when enough 68: 25: 6964:Template:Quantum mechanics topics 6516:Hawking radiation calculator tool 2619:. Combining the formulas for the 7461: 7449: 7167:The Dreams That Stuff Is Made Of 7036:Chronology protection conjecture 6959: 6958: 6680:Topological quantum field theory 5725:Matson, John (October 1, 2010). 4433:See in particular equation (27). 831: 724: 723: 710: 40: 7226:George and the Unbreakable Code 6665:Jackiw–Teitelboim gravity 6417:10.1016/j.nuclphysb.2007.01.009 6330:"Quantum gravity faces reality" 5302:"The Case for Mini Black Holes" 5137:10.1016/j.nuclphysb.2007.11.038 5082:10.1016/j.nuclphysb.2007.01.009 4144:. University of Chicago Press. 1027:than it emits. A black hole of 842:needs additional citations for 7424:Black hole information paradox 6870:Causal dynamical triangulation 6738:Black hole information paradox 6490:10.1088/1367-2630/14/10/105032 6441:. Wiley-Interscience. p.  6079:10.1016/j.physletb.2004.01.019 5668:10.1103/PhysRevLett.105.203901 4646:Reports on Progress in Physics 4504:Lopresto, Michael (May 2003). 4071:The little book of Black Holes 3645:Black hole information paradox 3264:black hole information paradox 2408: 2389: 2162: 2156: 2082: 2076: 1854: 1843: 1601: 1582: 1570: 1558: 1546: 1534: 1508: 1489: 1477: 1465: 1453: 1441: 1395: 1383: 1281: 1269: 1246: 1234: 1183: 1171: 1124: 1112: 944:Alternatively, using a set of 799:Hawking radiation reduces the 1: 7210:George's Cosmic Treasure Hunt 6836:Wheeler–DeWitt equation 6521:The case for mini black holes 5271:10.1103/PhysRevLett.87.161602 4880:10.1103/PhysRevLett.88.221602 4546:Planck Collaboration (2016). 3871:L. Susskind and J. Lindesay, 3616:is analogous to gravity (see 1077:Bekenstein-Hawking radiation. 7119:The Nature of Space and Time 6758:Cosmic censorship hypothesis 6577:Batalin–Vilkovisky formalism 5933:Astronomy & Astrophysics 5884:Astronomy & Astrophysics 4725:10.1016/0550-3213(85)90418-3 4366:10.1126/science.217.4560.593 2540:goes down in a complicated, 18:Bekenstein-Hawking radiation 7429:Thorne–Hawking–Preskill bet 6309:10.1088/0305-4470/36/27/317 4586:10.1051/0004-6361/201525830 4254:10.1103/PhysRevLett.71.3743 3675:Thorne–Hawking–Preskill bet 3588:theories are correct, then 772:is the theoretical thermal 221:Gravitational time dilation 7525: 7333:Stephen Hawking's Universe 7135:On the Shoulders of Giants 7127:The Universe in a Nutshell 6854:Hartle–Hawking state 6753:Bousso's holographic bound 6733:Black hole complementarity 6269:10.1103/PhysRevD.73.124022 6220:10.1103/PhysRevD.71.124039 6179:10.1103/PhysRevD.67.064025 5964:10.1051/0004-6361:20021588 5915:10.1051/0004-6361:20020313 5573:10.1038/s41567-020-01076-0 5216:10.1103/PhysRevD.65.056010 5027:10.1103/PhysRevLett.80.904 4677:10.1088/0034-4885/66/6/202 4317:10.1103/PhysRevD.78.064043 3580:Heavy-ion collider physics 3201:, the evaporation time is 3197:. But for a black hole of 341:Mathisson–Papapetrou–Dixon 182:Pseudo-Riemannian manifold 7373:Genius by Stephen Hawking 7143:A Briefer History of Time 7026:Black hole thermodynamics 6950: 6846:Euclidean quantum gravity 6823:Canonical quantum gravity 6773:Gravitational singularity 6743:Black-hole thermodynamics 6627:Ryu–Takayanagi conjecture 6129:10.1142/S0217751X04018324 5982:The Astrophysical Journal 5500:10.1038/s41586-019-1241-0 5405:Steinhauer, Jeff (2016). 5384:10.1142/s0217751x0301615x 3999:10.1142/S0218271812420230 3817:Black hole survival guide 3650:Black hole thermodynamics 3628:Bose–Einstein condensates 3524:originally discovered by 3292:becomes shorter than the 3237:black hole thermodynamics 2588:will evaporate in around 2494:onto a bounding surface. 954:gravitational singularity 786:electromagnetic radiation 7306:The Theory of Everything 7234:George and the Blue Moon 7186:(2023, posthume message) 7151:God Created the Integers 6900:Superfluid vacuum theory 6655:2+1D topological gravity 4942:Ashtekar, Abhay (2020). 4817:10.1103/PhysRevD.52.4559 4762:10.1103/PhysRevD.44.1731 3887:Lettere al Nuovo Cimento 3660:Blandford–Znajek process 3619:Analog models of gravity 3555:Experimental observation 2613:Schwarzschild black hole 2538:absorption cross section 2530:Schwarzschild black hole 1100:Schwarzschild black hole 899:gravitational attraction 346:Hamilton–Jacobi–Einstein 326:Einstein field equations 149:Mathematical formulation 7499:Astronomical hypotheses 7282:A Brief History of Time 7218:George and the Big Bang 7103:A Brief History of Time 6890:Noncommutative geometry 6637:Weinberg–Witten theorem 6632:Trans-Planckian problem 6468:New Journal of Physics 5956:2003A&A...398..403B 5907:2002A&A...388..676B 5872:10.1093/mnras/168.2.399 5821:10.1103/PhysRevD.13.198 5637:Physical Review Letters 5240:Physical Review Letters 4996:Physical Review Letters 4979:10.3390/universe6020021 4849:Physical Review Letters 4578:2016A&A...594A..13P 4562:. A13, p. 31, Table 4. 4429:10.1103/PhysRevD.13.198 4224:Physical Review Letters 4173:Hawking, S. W. (1975). 4124:10.1103/PhysRevD.13.198 3939:A Brief History of Time 3508:In loop quantum gravity 3282:trans-Planckian problem 3276:Trans-Planckian problem 3271:Problems and extensions 2804:reduced Planck constant 2623:of the black hole, the 1035:(about the mass of the 940:: Andrew Hamilton, JILA 7504:Hypothetical processes 7241:Unlocking the Universe 7046:Gibbons–Hawking effect 7041:Gibbons–Hawking ansatz 6572:AdS/CFT correspondence 6366:on September 10, 2008. 3670:Gibbons–Hawking effect 3574:primordial black holes 3549:primordial black holes 3532:, unless the value of 3478: 3376:large extra dimensions 3358:Large extra dimensions 3332:Schwarzschild solution 3211:primordial black holes 3121: 2820:gravitational constant 2785: 2708: 2498:Black hole evaporation 2480: 2418: 2333: 2250: 2193: 2123: 2050: 1813: 1617: 1364: 1297: 985:AdS/CFT correspondence 941: 817:primordial black holes 216:Gravitational redshift 109: 7183:On the Origin of Time 7051:Gibbons–Hawking space 6798:Bosonic string theory 6710:Semiclassical gravity 6607:Holographic principle 6597:Gravitational anomaly 6288:Journal of Physics A 5608:MIT Technology Review 4001:– via CrossRef. 3815:Levin, Janna (2020). 3594:Large Hadron Collider 3586:large extra dimension 3570:Fermi space telescope 3538:quantum gravitational 3479: 3122: 2828:semiclassical gravity 2786: 2709: 2481: 2419: 2334: 2251: 2194: 2124: 2051: 1814: 1618: 1365: 1298: 1092:equivalence principle 946:infalling coordinates 931: 796:' detecting ability. 504:Weyl−Lewis−Papapetrou 459:Kerr–Newman–de Sitter 279:Einstein–Rosen bridge 211:Gravitational lensing 167:Equivalence principle 110: 7489:Quantum field theory 7061:Hartle–Hawking state 6831:Loop quantum gravity 6690:Quantum field theory 6370:loop quantum gravity 3518:loop quantum gravity 3516:has been made using 3385: 3288:particles where the 2840: 2725: 2641: 2625:Stefan–Boltzmann law 2621:Schwarzschild radius 2519:dimensional analysis 2438: 2349: 2274: 2209: 2150: 2143:, so this is really 2070: 1837: 1699: 1380: 1317: 1109: 1072:rotating black holes 1002:A black hole of one 989:quantum field theory 851:improve this article 774:black-body radiation 434:Einstein–Rosen waves 160:Fundamental concepts 49: 6700:Bunch–Davies vacuum 6692:in curved spacetime 6592:Faddeev–Popov ghost 6481:2012NJPh...14j5032L 6409:2007NuPhB.783..179A 6381:Ansari, Mohammad H. 6349:2006PhT....59k..44S 6301:2003JPhA...36.7667N 6261:2006PhRvD..73l4022I 6212:2005PhRvD..71l4039I 6171:2003PhRvD..67f4025I 6121:2004IJMPA..19.4899K 6071:2004PhLB..584..114B 6005:2005ApJ...630.1015B 5863:1974MNRAS.168..399C 5831:Hawking, Stephen W. 5813:1976PhRvD..13..198P 5770:1974Natur.248...30H 5752:Hawking, Stephen W. 5732:Scientific American 5660:2010PhRvL.105t3901B 5565:2021NatPh..17..362K 5492:2019Natur.569..688M 5435:2016NatPh..12..959S 5376:2003IJMPA..18.3735B 5263:2001PhRvL..87p1602D 5208:2002PhRvD..65e6010G 5180:Giddings, Steven B. 5129:2008NuPhB.795..635A 5074:2007NuPhB.783..179A 5019:1998PhRvL..80..904A 4970:2020Univ....6...21A 4929:2005tsra.conf...89C 4872:2002PhRvL..88v1602C 4809:1995PhRvD..52.4559B 4754:1991PhRvD..44.1731J 4717:1985NuPhB.256..727T 4669:2003RPPh...66..943H 4525:2003PhTea..41..299L 4513:The Physics Teacher 4421:1976PhRvD..13..198P 4358:1982Sci...217..593F 4309:2008PhRvD..78f4043M 4246:1993PhRvL..71.3743P 4193:1975CMaPh..43..199H 4116:1976PhRvD..13..198P 3991:2012IJMPD..2142023C 3794:Karozis, Nikolaos. 3740:1974Natur.248...30H 3655:Black hole starship 3610:sound perturbations 3560:Astronomical search 3187:age of the universe 2504:Einstein's equation 1070:convinced him that 809:Hawking temperature 776:released outside a 388:Kaluza–Klein theory 274:Minkowski spacetime 226:Gravitational waves 7509:1974 introductions 7414:In popular culture 7391:Jane Wilde Hawking 7344:(2008 documentary) 7336:(1997 documentary) 6885:Group field theory 6813:Superstring theory 6768:Firewall (physics) 5829:Carr, Bernard J.; 4556:Astron. Astrophys. 4449:Starts With a Bang 4201:10.1007/BF02345020 3899:10.1007/BF02757029 3843:Hamilton, Andrew. 3712:on March 29, 2013. 3522:black hole entropy 3474: 3181:) takes more than 3117: 2781: 2704: 2476: 2414: 2329: 2246: 2189: 2119: 2046: 1809: 1613: 1360: 1293: 1068:Alexei Starobinsky 942: 903:Karl Schwarzschild 891:general relativity 889:'s 1915 theory of 717:Physics portal 489:Oppenheimer–Snyder 429:Reissner–Nordström 321:Linearized gravity 269:Spacetime diagrams 172:Special relativity 105: 34:General relativity 7437: 7436: 7349:Genius of Britain 7269: 7268: 7021:Hawking radiation 6973: 6972: 6930:Eternal inflation 6925:Quantum cosmology 6913: 6912: 6705:Hawking radiation 6670:Liouville gravity 6452:978-0-471-87316-7 6386:Nuclear Physics B 6357:10.1063/1.2435646 6328:(November 2006). 6295:(27): 7667–7677. 6238:Physical Review D 6189:Physical Review D 6148:Physical Review D 6105:(29): 4899–4951. 6048:Physics Letters B 5800:Physical Review D 5476:(7758): 688–691. 5443:10.1038/nphys3863 5360:(21): 3735–3745. 5185:Physical Review D 5106:Nuclear Physics B 5051:Nuclear Physics B 4786:Physical Review D 4741:Physical Review D 4704:Nuclear Physics B 4533:10.1119/1.1571268 4408:Physical Review D 4352:(4560): 593–599. 4286:Physical Review D 4230:(23): 3743–3746. 4103:Physical Review D 3849:jila.colorado.edu 3624:sonic black holes 3606:sonic black holes 3468: 3438: 3425: 3409: 3102: 3081: 3077: 3042: 3023: 2981: 2978: 2958: 2939: 2906: 2779: 2702: 2471: 2303: 2241: 2219: 2184: 2114: 2111: 2041: 2038: 2031: 1974: 1973: 1970: 1942: 1917: 1914: 1907: 1804: 1801: 1794: 1742: 1721: 1428: 1355: 1231: 1224: 1163: 932:Picture of space 883: 882: 875: 813:micro black holes 770:Hawking radiation 767: 766: 400: 399: 286: 285: 16:(Redirected from 7516: 7466: 7465: 7454: 7453: 7452: 7445: 7259:My Brief History 7159:The Grand Design 7084: 7031:Micro black hole 7000: 6993: 6986: 6977: 6962: 6961: 6786: 6748:Bekenstein bound 6565:Central concepts 6551: 6544: 6537: 6528: 6504: 6502: 6492: 6456: 6440: 6428: 6402: 6367: 6365: 6359:. Archived from 6334: 6320: 6280: 6254: 6231: 6205: 6182: 6164: 6140: 6114: 6090: 6064: 6055:(1–2): 114–122. 6040: 6038: 6036:astro-ph/0212225 6024: 5998: 5996:astro-ph/0505436 5989:(2): 1015–1019. 5975: 5949: 5947:astro-ph/0207395 5926: 5900: 5898:astro-ph/0112486 5876: 5874: 5856: 5824: 5789: 5778:10.1038/248030a0 5737: 5736: 5722: 5716: 5715: 5713: 5711: 5694: 5688: 5687: 5653: 5630: 5624: 5623: 5621: 5619: 5614:on March 1, 2012 5610:. Archived from 5599: 5593: 5592: 5558: 5534: 5528: 5527: 5485: 5461: 5455: 5454: 5428: 5402: 5396: 5395: 5369: 5347: 5341: 5340: 5338: 5336: 5318: 5312: 5311: 5297: 5291: 5290: 5256: 5234: 5228: 5227: 5201: 5176: 5170: 5169: 5167: 5155: 5149: 5148: 5122: 5100: 5094: 5093: 5067: 5045: 5039: 5038: 5012: 4990: 4984: 4983: 4981: 4963: 4939: 4933: 4932: 4922: 4920:astro-ph/0504034 4906: 4900: 4899: 4865: 4843: 4837: 4836: 4802: 4793:(8): 4559–4568. 4780: 4774: 4773: 4748:(6): 1731–1739. 4735: 4729: 4728: 4699:'t Hooft, Gerard 4695: 4689: 4688: 4662: 4640: 4634: 4633: 4631: 4629:astro-ph/9911309 4619: 4613: 4612: 4610: 4608: 4571: 4552: 4543: 4537: 4536: 4510: 4501: 4490: 4489: 4480:Toth, Viktor T. 4477: 4466: 4465: 4463: 4461: 4440: 4434: 4432: 4402: 4396: 4395: 4338: 4329: 4328: 4302: 4280: 4274: 4273: 4239: 4219: 4213: 4212: 4170: 4164: 4163: 4134: 4128: 4127: 4094: 4085: 4084: 4065: 4059: 4058: 4042: 4031: 4022: 4021: 4009: 4003: 4002: 3984: 3960: 3954: 3953: 3942:. Bantam Books. 3934:Hawking, Stephen 3930: 3924: 3921:no-hair theorems 3917: 3911: 3910: 3882: 3876: 3869: 3863: 3862: 3857: 3855: 3840: 3831: 3830: 3812: 3803: 3802: 3800: 3791: 3785: 3784: 3777: 3768: 3767: 3748:10.1038/248030a0 3723: 3714: 3713: 3708:. Archived from 3697: 3534:a free parameter 3503: 3499: 3495: 3483: 3481: 3480: 3475: 3470: 3469: 3467: 3456: 3445: 3443: 3439: 3437: 3436: 3427: 3426: 3423: 3417: 3410: 3408: 3407: 3395: 3374:In a model with 3370: 3366: 3223: 3208: 3206: 3200: 3196: 3194: 3184: 3180: 3178: 3172: 3159: 3150: 3141: 3135: 3126: 3124: 3123: 3118: 3113: 3112: 3107: 3103: 3101: 3100: 3088: 3079: 3078: 3075: 3072: 3071: 3053: 3052: 3047: 3043: 3041: 3030: 3021: 3020: 3014: 3013: 2992: 2991: 2986: 2982: 2980: 2979: 2976: 2967: 2960: 2959: 2956: 2940: 2938: 2930: 2926: 2925: 2912: 2907: 2905: 2904: 2903: 2890: 2889: 2888: 2879: 2878: 2862: 2857: 2856: 2855: 2825: 2817: 2809: 2801: 2797: 2790: 2788: 2787: 2782: 2780: 2778: 2777: 2776: 2767: 2766: 2750: 2749: 2748: 2735: 2713: 2711: 2710: 2705: 2703: 2701: 2700: 2699: 2698: 2675: 2674: 2673: 2660: 2655: 2654: 2653: 2618: 2595: 2593: 2576: 2574: 2570: 2551: 2549: 2535: 2516: 2485: 2483: 2482: 2477: 2472: 2464: 2459: 2458: 2423: 2421: 2420: 2415: 2407: 2406: 2388: 2377: 2356: 2338: 2336: 2335: 2330: 2322: 2304: 2299: 2295: 2289: 2281: 2266: 2262: 2255: 2253: 2252: 2247: 2242: 2240: 2226: 2221: 2220: 2217: 2198: 2196: 2195: 2190: 2185: 2183: 2169: 2142: 2135: 2128: 2126: 2125: 2120: 2115: 2113: 2112: 2101: 2089: 2062: 2055: 2053: 2052: 2047: 2042: 2040: 2039: 2037: 2033: 2032: 2030: 2022: 2014: 1992: 1980: 1975: 1972: 1971: 1969: 1961: 1953: 1944: 1943: 1938: 1930: 1921: 1920: 1918: 1916: 1915: 1913: 1909: 1908: 1903: 1895: 1873: 1861: 1853: 1818: 1816: 1815: 1810: 1805: 1803: 1802: 1800: 1796: 1795: 1790: 1782: 1760: 1748: 1743: 1741: 1727: 1722: 1720: 1709: 1687: 1680: 1679: 1677: 1676: 1671: 1668: 1656: 1655: 1653: 1652: 1646: 1643: 1622: 1620: 1619: 1614: 1609: 1608: 1599: 1598: 1589: 1578: 1577: 1565: 1554: 1553: 1541: 1532: 1531: 1516: 1515: 1506: 1505: 1496: 1485: 1484: 1472: 1461: 1460: 1448: 1439: 1438: 1433: 1429: 1427: 1416: 1403: 1402: 1390: 1369: 1367: 1366: 1361: 1356: 1354: 1346: 1345: 1336: 1302: 1300: 1299: 1294: 1289: 1288: 1276: 1267: 1266: 1254: 1253: 1241: 1232: 1230: 1226: 1225: 1220: 1212: 1196: 1191: 1190: 1178: 1169: 1165: 1164: 1159: 1151: 1132: 1131: 1119: 1082:Emission process 1056:Jacob Bekenstein 1045: 1034: 1032: 878: 871: 867: 864: 858: 835: 827: 759: 752: 745: 732: 727: 726: 719: 715: 714: 499:van Stockum dust 484:Robertson–Walker 310: 200: 114: 112: 111: 106: 104: 103: 91: 83: 82: 64: 63: 44: 30: 21: 7524: 7523: 7519: 7518: 7517: 7515: 7514: 7513: 7494:Stephen Hawking 7474: 7473: 7472: 7460: 7450: 7448: 7440: 7438: 7433: 7402: 7379: 7312: 7265: 7246: 7189: 7075: 7009: 7007:Stephen Hawking 7004: 6974: 6969: 6968: 6946: 6935:FRW/CFT duality 6909: 6858: 6840: 6817: 6777: 6719: 6691: 6684: 6641: 6560: 6558:Quantum gravity 6555: 6512: 6507: 6460: 6453: 6432: 6379: 6363: 6332: 6324: 6284: 6234: 6185: 6144: 6094: 6044: 6028: 5978: 5929: 5880: 5828: 5793: 5764:(5443): 30–31. 5750: 5746: 5744:Further reading 5741: 5740: 5724: 5723: 5719: 5709: 5707: 5696: 5695: 5691: 5632: 5631: 5627: 5617: 5615: 5601: 5600: 5596: 5536: 5535: 5531: 5463: 5462: 5458: 5419:(10): 959–965. 5404: 5403: 5399: 5349: 5348: 5344: 5334: 5332: 5320: 5319: 5315: 5299: 5298: 5294: 5236: 5235: 5231: 5178: 5177: 5173: 5157: 5156: 5152: 5102: 5101: 5097: 5047: 5046: 5042: 4992: 4991: 4987: 4941: 4940: 4936: 4908: 4907: 4903: 4845: 4844: 4840: 4782: 4781: 4777: 4737: 4736: 4732: 4697: 4696: 4692: 4653:(6): 943–1008. 4642: 4641: 4637: 4621: 4620: 4616: 4606: 4604: 4550: 4545: 4544: 4540: 4508: 4503: 4502: 4493: 4479: 4478: 4469: 4459: 4457: 4442: 4441: 4437: 4404: 4403: 4399: 4392: 4389: 4341: 4339: 4332: 4282: 4281: 4277: 4221: 4220: 4216: 4172: 4171: 4167: 4152: 4138:Wald, Robert M. 4136: 4135: 4131: 4096: 4095: 4088: 4081: 4068: 4066: 4062: 4055: 4034: 4032: 4025: 4011: 4010: 4006: 3975:(11): 1242023. 3962: 3961: 3957: 3950: 3932: 3931: 3927: 3918: 3914: 3884: 3883: 3879: 3870: 3866: 3853: 3851: 3842: 3841: 3834: 3827: 3814: 3813: 3806: 3798: 3793: 3792: 3788: 3779: 3778: 3771: 3734:(5443): 30–31. 3725: 3724: 3717: 3706:charlierose.com 3700:Rose, Charlie. 3699: 3698: 3694: 3689: 3684: 3664:Penrose process 3640: 3602: 3584:If speculative 3582: 3562: 3557: 3510: 3501: 3497: 3494: 3488: 3457: 3446: 3428: 3418: 3412: 3411: 3399: 3383: 3382: 3368: 3364: 3360: 3278: 3273: 3249:quantum gravity 3221: 3204: 3202: 3198: 3192: 3190: 3182: 3176: 3174: 3171: 3168: 3165: 3158: 3152: 3149: 3143: 3137: 3131: 3092: 3083: 3082: 3063: 3025: 3024: 3002: 2971: 2962: 2961: 2951: 2931: 2917: 2913: 2895: 2891: 2880: 2870: 2863: 2843: 2838: 2837: 2823: 2815: 2807: 2799: 2795: 2768: 2758: 2751: 2740: 2736: 2723: 2722: 2689: 2676: 2665: 2661: 2644: 2639: 2638: 2616: 2602: 2599: 2591: 2589: 2587: 2584: 2572: 2568: 2566: 2547: 2545: 2533: 2506: 2500: 2492:somehow encoded 2450: 2436: 2435: 2398: 2347: 2346: 2290: 2272: 2271: 2264: 2260: 2230: 2212: 2207: 2206: 2173: 2148: 2147: 2137: 2133: 2093: 2068: 2067: 2063:at infinity is 2060: 2023: 2015: 2006: 2002: 1984: 1962: 1954: 1945: 1931: 1922: 1896: 1887: 1883: 1865: 1846: 1835: 1834: 1783: 1774: 1770: 1752: 1731: 1713: 1697: 1696: 1682: 1672: 1669: 1666: 1665: 1663: 1658: 1647: 1644: 1639: 1638: 1636: 1631: 1600: 1590: 1569: 1545: 1523: 1507: 1497: 1476: 1452: 1420: 1411: 1410: 1394: 1378: 1377: 1347: 1337: 1315: 1314: 1280: 1258: 1245: 1213: 1204: 1200: 1182: 1152: 1143: 1139: 1123: 1107: 1106: 1084: 1064:Yakov Zeldovich 1060:Stephen Hawking 1052: 1040: 1030: 1028: 1013: 1010: 969:Stephen Hawking 879: 868: 862: 859: 848: 836: 825: 790:Stephen Hawking 763: 722: 709: 708: 701: 700: 524: 523: 514: 513: 469:LemaĂźtre–Tolman 414: 413: 402: 401: 393:Quantum gravity 380:Advanced theory 307: 306: 305: 288: 287: 236:Geodetic effect 197: 196: 187: 186: 162: 161: 145: 115: 92: 71: 52: 47: 46: 28: 23: 22: 15: 12: 11: 5: 7522: 7520: 7512: 7511: 7506: 7501: 7496: 7491: 7486: 7476: 7475: 7471: 7470: 7458: 7435: 7434: 7432: 7431: 7426: 7421: 7416: 7410: 7408: 7404: 7403: 7401: 7400: 7394: 7387: 7385: 7381: 7380: 7378: 7377: 7369: 7361: 7353: 7345: 7337: 7329: 7320: 7318: 7314: 7313: 7311: 7310: 7302: 7294: 7286: 7277: 7275: 7271: 7270: 7267: 7266: 7264: 7263: 7254: 7252: 7248: 7247: 7245: 7244: 7238: 7230: 7222: 7214: 7206: 7197: 7195: 7191: 7190: 7188: 7187: 7179: 7171: 7163: 7155: 7147: 7139: 7131: 7123: 7115: 7107: 7099: 7090: 7088: 7081: 7077: 7076: 7074: 7073: 7071:Hawking energy 7068: 7063: 7058: 7053: 7048: 7043: 7038: 7033: 7028: 7023: 7017: 7015: 7011: 7010: 7005: 7003: 7002: 6995: 6988: 6980: 6971: 6970: 6967: 6966: 6952: 6951: 6948: 6947: 6945: 6944: 6943: 6942: 6937: 6932: 6921: 6919: 6915: 6914: 6911: 6910: 6908: 6907: 6905:Twistor theory 6902: 6897: 6892: 6887: 6882: 6877: 6872: 6866: 6864: 6860: 6859: 6857: 6856: 6850: 6848: 6842: 6841: 6839: 6838: 6833: 6827: 6825: 6819: 6818: 6816: 6815: 6810: 6805: 6800: 6794: 6792: 6783: 6779: 6778: 6776: 6775: 6770: 6765: 6760: 6755: 6750: 6745: 6740: 6735: 6729: 6727: 6721: 6720: 6718: 6717: 6712: 6707: 6702: 6696: 6694: 6686: 6685: 6683: 6682: 6677: 6672: 6667: 6662: 6657: 6651: 6649: 6643: 6642: 6640: 6639: 6634: 6629: 6624: 6619: 6614: 6609: 6604: 6599: 6594: 6589: 6584: 6579: 6574: 6568: 6566: 6562: 6561: 6556: 6554: 6553: 6546: 6539: 6531: 6525: 6524: 6518: 6511: 6510:External links 6508: 6506: 6505: 6475:(10): 105032. 6458: 6451: 6430: 6400:hep-th/0607081 6393:(3): 179–212. 6377: 6322: 6282: 6252:hep-th/0602188 6245:(12): 124022. 6232: 6203:hep-th/0503052 6196:(12): 124039. 6183: 6162:hep-th/0212108 6142: 6112:hep-ph/0402168 6092: 6062:hep-ph/0311238 6042: 6026: 6013:10.1086/432033 5976: 5940:(2): 403–410. 5927: 5891:(2): 676–687. 5878: 5847:(2): 399–415. 5826: 5807:(2): 198–206. 5791: 5747: 5745: 5742: 5739: 5738: 5717: 5689: 5644:(20): 203901. 5625: 5594: 5549:(3): 362–367. 5543:Nature Physics 5529: 5456: 5412:Nature Physics 5397: 5342: 5313: 5292: 5254:hep-ph/0106295 5247:(16): 161602. 5229: 5199:hep-ph/0106219 5171: 5150: 5113:(3): 635–644. 5095: 5065:hep-th/0607081 5058:(3): 179–212. 5040: 5003:(5): 904–907. 4985: 4934: 4901: 4863:hep-ph/0110163 4856:(22): 221602. 4838: 4800:hep-th/9506121 4775: 4730: 4690: 4635: 4614: 4538: 4519:(5): 299–301. 4491: 4486:www.vttoth.com 4467: 4435: 4415:(2): 198–206. 4397: 4390: 4387: 4330: 4275: 4237:hep-th/9306083 4214: 4187:(3): 199–220. 4165: 4150: 4129: 4110:(2): 198–206. 4086: 4080:978-0691163727 4079: 4060: 4053: 4023: 4004: 3955: 3948: 3925: 3912: 3893:(15): 99–104. 3877: 3864: 3832: 3825: 3804: 3786: 3769: 3715: 3691: 3690: 3688: 3685: 3683: 3682: 3677: 3672: 3667: 3657: 3652: 3647: 3641: 3639: 3636: 3601: 3598: 3581: 3578: 3564:In June 2008, 3561: 3558: 3556: 3553: 3509: 3506: 3492: 3485: 3484: 3473: 3466: 3463: 3460: 3455: 3452: 3449: 3442: 3435: 3431: 3421: 3415: 3406: 3402: 3398: 3393: 3390: 3359: 3356: 3320:Doppler shifts 3277: 3274: 3272: 3269: 3268: 3267: 3260: 3257:Planck lengths 3240: 3169: 3166: 3156: 3147: 3128: 3127: 3116: 3111: 3106: 3099: 3095: 3091: 3086: 3070: 3066: 3062: 3059: 3056: 3051: 3046: 3040: 3037: 3033: 3028: 3019: 3012: 3009: 3005: 3001: 2998: 2995: 2990: 2985: 2974: 2970: 2965: 2954: 2949: 2946: 2943: 2937: 2934: 2929: 2924: 2920: 2916: 2910: 2902: 2898: 2894: 2887: 2883: 2877: 2873: 2869: 2866: 2860: 2854: 2851: 2846: 2812:speed of light 2792: 2791: 2775: 2771: 2765: 2761: 2757: 2754: 2747: 2743: 2739: 2733: 2730: 2715: 2714: 2697: 2692: 2688: 2685: 2682: 2679: 2672: 2668: 2664: 2658: 2652: 2647: 2600: 2597: 2585: 2582: 2559:Standard Model 2499: 2496: 2487: 2486: 2475: 2470: 2467: 2462: 2457: 2453: 2449: 2446: 2443: 2425: 2424: 2413: 2410: 2405: 2401: 2397: 2394: 2391: 2387: 2383: 2380: 2376: 2371: 2368: 2365: 2362: 2359: 2355: 2340: 2339: 2328: 2325: 2321: 2316: 2313: 2310: 2307: 2302: 2298: 2294: 2287: 2284: 2280: 2257: 2256: 2245: 2239: 2236: 2233: 2229: 2224: 2215: 2200: 2199: 2188: 2182: 2179: 2176: 2172: 2167: 2164: 2161: 2158: 2155: 2130: 2129: 2118: 2110: 2107: 2104: 2099: 2096: 2092: 2087: 2084: 2081: 2078: 2075: 2057: 2056: 2045: 2036: 2029: 2026: 2021: 2018: 2012: 2009: 2005: 2001: 1998: 1995: 1990: 1987: 1983: 1978: 1968: 1965: 1960: 1957: 1951: 1948: 1941: 1937: 1934: 1928: 1925: 1912: 1906: 1902: 1899: 1893: 1890: 1886: 1882: 1879: 1876: 1871: 1868: 1864: 1859: 1856: 1852: 1849: 1845: 1842: 1820: 1819: 1808: 1799: 1793: 1789: 1786: 1780: 1777: 1773: 1769: 1766: 1763: 1758: 1755: 1751: 1746: 1740: 1737: 1734: 1730: 1725: 1719: 1716: 1712: 1707: 1704: 1681:, diverges as 1624: 1623: 1612: 1607: 1603: 1597: 1593: 1588: 1584: 1581: 1576: 1572: 1568: 1564: 1560: 1557: 1552: 1548: 1544: 1540: 1536: 1530: 1526: 1522: 1519: 1514: 1510: 1504: 1500: 1495: 1491: 1488: 1483: 1479: 1475: 1471: 1467: 1464: 1459: 1455: 1451: 1447: 1443: 1437: 1432: 1426: 1423: 1419: 1414: 1409: 1406: 1401: 1397: 1393: 1389: 1385: 1371: 1370: 1359: 1353: 1350: 1344: 1340: 1334: 1331: 1328: 1325: 1322: 1304: 1303: 1292: 1287: 1283: 1279: 1275: 1271: 1265: 1261: 1257: 1252: 1248: 1244: 1240: 1236: 1229: 1223: 1219: 1216: 1210: 1207: 1203: 1199: 1194: 1189: 1185: 1181: 1177: 1173: 1168: 1162: 1158: 1155: 1149: 1146: 1142: 1138: 1135: 1130: 1126: 1122: 1118: 1114: 1083: 1080: 1051: 1048: 1011: 1008: 991:at a non-zero 881: 880: 839: 837: 830: 824: 821: 765: 764: 762: 761: 754: 747: 739: 736: 735: 734: 733: 720: 703: 702: 699: 698: 691: 686: 681: 676: 671: 666: 661: 656: 651: 646: 641: 636: 631: 626: 621: 616: 611: 606: 601: 596: 591: 586: 581: 576: 571: 566: 561: 556: 551: 546: 541: 536: 531: 525: 521: 520: 519: 516: 515: 512: 511: 506: 501: 496: 491: 486: 481: 476: 471: 466: 461: 456: 451: 446: 441: 436: 431: 426: 415: 409: 408: 407: 404: 403: 398: 397: 396: 395: 390: 382: 381: 377: 376: 375: 374: 372:Post-Newtonian 369: 364: 356: 355: 351: 350: 349: 348: 343: 338: 333: 328: 323: 315: 314: 308: 304: 303: 300: 296: 295: 294: 293: 290: 289: 284: 283: 282: 281: 276: 271: 263: 262: 256: 255: 254: 253: 248: 243: 238: 233: 231:Frame-dragging 228: 223: 218: 213: 208: 206:Kepler problem 198: 194: 193: 192: 189: 188: 185: 184: 179: 174: 169: 163: 159: 158: 157: 154: 153: 152: 151: 146: 144: 143: 138: 133: 127: 125: 117: 116: 102: 99: 95: 90: 86: 81: 78: 74: 70: 67: 62: 59: 55: 45: 37: 36: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 7521: 7510: 7507: 7505: 7502: 7500: 7497: 7495: 7492: 7490: 7487: 7485: 7482: 7481: 7479: 7469: 7464: 7459: 7457: 7447: 7443: 7430: 7427: 7425: 7422: 7420: 7417: 7415: 7412: 7411: 7409: 7405: 7398: 7395: 7392: 7389: 7388: 7386: 7382: 7376:(2016 series) 7375: 7374: 7370: 7368:(2011 series) 7367: 7366: 7362: 7360:(2010 series) 7359: 7358: 7354: 7352:(2010 series) 7351: 7350: 7346: 7343: 7342: 7338: 7335: 7334: 7330: 7327: 7326: 7322: 7321: 7319: 7315: 7308: 7307: 7303: 7300: 7299: 7295: 7292: 7291: 7287: 7284: 7283: 7279: 7278: 7276: 7272: 7261: 7260: 7256: 7255: 7253: 7249: 7242: 7239: 7236: 7235: 7231: 7228: 7227: 7223: 7220: 7219: 7215: 7212: 7211: 7207: 7204: 7203: 7199: 7198: 7196: 7192: 7185: 7184: 7180: 7177: 7176: 7172: 7169: 7168: 7164: 7161: 7160: 7156: 7153: 7152: 7148: 7145: 7144: 7140: 7137: 7136: 7132: 7129: 7128: 7124: 7121: 7120: 7116: 7113: 7112: 7108: 7105: 7104: 7100: 7097: 7096: 7092: 7091: 7089: 7085: 7082: 7078: 7072: 7069: 7067: 7064: 7062: 7059: 7057: 7054: 7052: 7049: 7047: 7044: 7042: 7039: 7037: 7034: 7032: 7029: 7027: 7024: 7022: 7019: 7018: 7016: 7012: 7008: 7001: 6996: 6994: 6989: 6987: 6982: 6981: 6978: 6965: 6957: 6954: 6953: 6949: 6941: 6938: 6936: 6933: 6931: 6928: 6927: 6926: 6923: 6922: 6920: 6916: 6906: 6903: 6901: 6898: 6896: 6893: 6891: 6888: 6886: 6883: 6881: 6880:Dual graviton 6878: 6876: 6873: 6871: 6868: 6867: 6865: 6861: 6855: 6852: 6851: 6849: 6847: 6843: 6837: 6834: 6832: 6829: 6828: 6826: 6824: 6820: 6814: 6811: 6809: 6806: 6804: 6801: 6799: 6796: 6795: 6793: 6791: 6790:String theory 6787: 6784: 6780: 6774: 6771: 6769: 6766: 6764: 6761: 6759: 6756: 6754: 6751: 6749: 6746: 6744: 6741: 6739: 6736: 6734: 6731: 6730: 6728: 6726: 6722: 6716: 6713: 6711: 6708: 6706: 6703: 6701: 6698: 6697: 6695: 6693: 6687: 6681: 6678: 6676: 6673: 6671: 6668: 6666: 6663: 6661: 6658: 6656: 6653: 6652: 6650: 6648: 6644: 6638: 6635: 6633: 6630: 6628: 6625: 6623: 6620: 6618: 6615: 6613: 6610: 6608: 6605: 6603: 6600: 6598: 6595: 6593: 6590: 6588: 6585: 6583: 6580: 6578: 6575: 6573: 6570: 6569: 6567: 6563: 6559: 6552: 6547: 6545: 6540: 6538: 6533: 6532: 6529: 6522: 6519: 6517: 6514: 6513: 6509: 6501: 6496: 6491: 6486: 6482: 6478: 6474: 6470: 6469: 6464: 6459: 6454: 6448: 6444: 6439: 6438: 6431: 6426: 6422: 6418: 6414: 6410: 6406: 6401: 6396: 6392: 6388: 6387: 6382: 6378: 6375: 6371: 6362: 6358: 6354: 6350: 6346: 6343:(11): 44–48. 6342: 6338: 6337:Physics Today 6331: 6327: 6323: 6318: 6314: 6310: 6306: 6302: 6298: 6294: 6290: 6289: 6283: 6278: 6274: 6270: 6266: 6262: 6258: 6253: 6248: 6244: 6240: 6239: 6233: 6229: 6225: 6221: 6217: 6213: 6209: 6204: 6199: 6195: 6191: 6190: 6184: 6180: 6176: 6172: 6168: 6163: 6158: 6155:(6): 064025. 6154: 6150: 6149: 6143: 6138: 6134: 6130: 6126: 6122: 6118: 6113: 6108: 6104: 6100: 6099: 6093: 6088: 6084: 6080: 6076: 6072: 6068: 6063: 6058: 6054: 6050: 6049: 6043: 6037: 6032: 6027: 6022: 6018: 6014: 6010: 6006: 6002: 5997: 5992: 5988: 5984: 5983: 5977: 5973: 5969: 5965: 5961: 5957: 5953: 5948: 5943: 5939: 5935: 5934: 5928: 5924: 5920: 5916: 5912: 5908: 5904: 5899: 5894: 5890: 5886: 5885: 5879: 5873: 5868: 5864: 5860: 5855: 5850: 5846: 5842: 5841: 5836: 5832: 5827: 5822: 5818: 5814: 5810: 5806: 5802: 5801: 5796: 5792: 5787: 5783: 5779: 5775: 5771: 5767: 5763: 5759: 5758: 5753: 5749: 5748: 5743: 5734: 5733: 5728: 5721: 5718: 5706: 5705: 5700: 5693: 5690: 5685: 5681: 5677: 5673: 5669: 5665: 5661: 5657: 5652: 5647: 5643: 5639: 5638: 5629: 5626: 5618:September 27, 5613: 5609: 5605: 5598: 5595: 5590: 5586: 5582: 5578: 5574: 5570: 5566: 5562: 5557: 5552: 5548: 5544: 5540: 5533: 5530: 5525: 5521: 5517: 5513: 5509: 5505: 5501: 5497: 5493: 5489: 5484: 5479: 5475: 5471: 5467: 5460: 5457: 5452: 5448: 5444: 5440: 5436: 5432: 5427: 5422: 5418: 5414: 5413: 5408: 5401: 5398: 5393: 5389: 5385: 5381: 5377: 5373: 5368: 5367:gr-qc/0110036 5363: 5359: 5355: 5354: 5346: 5343: 5330: 5329: 5324: 5317: 5314: 5309: 5308: 5303: 5296: 5293: 5288: 5284: 5280: 5276: 5272: 5268: 5264: 5260: 5255: 5250: 5246: 5242: 5241: 5233: 5230: 5225: 5221: 5217: 5213: 5209: 5205: 5200: 5195: 5192:(5): 056010. 5191: 5187: 5186: 5181: 5175: 5172: 5166: 5161: 5154: 5151: 5146: 5142: 5138: 5134: 5130: 5126: 5121: 5120:gr-qc/0603121 5116: 5112: 5108: 5107: 5099: 5096: 5091: 5087: 5083: 5079: 5075: 5071: 5066: 5061: 5057: 5053: 5052: 5044: 5041: 5036: 5032: 5028: 5024: 5020: 5016: 5011: 5010:gr-qc/9710007 5006: 5002: 4998: 4997: 4989: 4986: 4980: 4975: 4971: 4967: 4962: 4957: 4953: 4949: 4945: 4938: 4935: 4930: 4926: 4921: 4916: 4912: 4905: 4902: 4897: 4893: 4889: 4885: 4881: 4877: 4873: 4869: 4864: 4859: 4855: 4851: 4850: 4842: 4839: 4834: 4830: 4826: 4822: 4818: 4814: 4810: 4806: 4801: 4796: 4792: 4788: 4787: 4779: 4776: 4771: 4767: 4763: 4759: 4755: 4751: 4747: 4743: 4742: 4734: 4731: 4726: 4722: 4718: 4714: 4710: 4706: 4705: 4700: 4694: 4691: 4686: 4682: 4678: 4674: 4670: 4666: 4661: 4660:gr-qc/0304042 4656: 4652: 4648: 4647: 4639: 4636: 4630: 4625: 4618: 4615: 4603: 4599: 4595: 4591: 4587: 4583: 4579: 4575: 4570: 4565: 4561: 4558: 4557: 4549: 4542: 4539: 4534: 4530: 4526: 4522: 4518: 4514: 4507: 4500: 4498: 4496: 4492: 4487: 4483: 4476: 4474: 4472: 4468: 4455: 4451: 4450: 4445: 4439: 4436: 4430: 4426: 4422: 4418: 4414: 4410: 4409: 4401: 4398: 4394: 4383: 4379: 4375: 4371: 4367: 4363: 4359: 4355: 4351: 4347: 4346: 4337: 4335: 4331: 4326: 4322: 4318: 4314: 4310: 4306: 4301: 4296: 4293:(6): 064043. 4292: 4288: 4287: 4279: 4276: 4271: 4267: 4263: 4259: 4255: 4251: 4247: 4243: 4238: 4233: 4229: 4225: 4218: 4215: 4210: 4206: 4202: 4198: 4194: 4190: 4186: 4182: 4181: 4176: 4169: 4166: 4161: 4157: 4153: 4151:9780226870250 4147: 4143: 4139: 4133: 4130: 4125: 4121: 4117: 4113: 4109: 4105: 4104: 4099: 4093: 4091: 4087: 4082: 4076: 4072: 4064: 4061: 4056: 4054:0-521-29928-4 4050: 4046: 4041: 4040: 4030: 4028: 4024: 4019: 4015: 4008: 4005: 4000: 3996: 3992: 3988: 3983: 3978: 3974: 3970: 3966: 3959: 3956: 3951: 3949:0-553-38016-8 3945: 3941: 3940: 3935: 3929: 3926: 3922: 3916: 3913: 3908: 3904: 3900: 3896: 3892: 3888: 3881: 3878: 3874: 3868: 3865: 3861: 3850: 3846: 3839: 3837: 3833: 3828: 3826:9780525658221 3822: 3818: 3811: 3809: 3805: 3797: 3790: 3787: 3782: 3776: 3774: 3770: 3765: 3761: 3757: 3753: 3749: 3745: 3741: 3737: 3733: 3729: 3722: 3720: 3716: 3711: 3707: 3703: 3696: 3693: 3686: 3681: 3678: 3676: 3673: 3671: 3668: 3665: 3661: 3658: 3656: 3653: 3651: 3648: 3646: 3643: 3642: 3637: 3635: 3631: 3629: 3625: 3621: 3620: 3615: 3614:perfect fluid 3611: 3607: 3599: 3597: 3595: 3591: 3587: 3579: 3577: 3575: 3571: 3568:launched the 3567: 3559: 3554: 3552: 3550: 3546: 3541: 3539: 3535: 3531: 3527: 3523: 3519: 3515: 3514:event horizon 3507: 3505: 3491: 3471: 3464: 3461: 3458: 3453: 3450: 3447: 3440: 3433: 3429: 3419: 3413: 3404: 3400: 3396: 3391: 3388: 3381: 3380: 3379: 3377: 3372: 3357: 3355: 3353: 3347: 3344: 3339: 3335: 3333: 3328: 3323: 3321: 3317: 3313: 3308: 3306: 3302: 3299: 3295: 3294:Planck length 3291: 3287: 3283: 3275: 3270: 3265: 3261: 3258: 3254: 3250: 3246: 3241: 3238: 3234: 3233: 3232: 3229: 3227: 3219: 3214: 3212: 3207:10 years 3195:10 years 3188: 3183:10 years 3163: 3155: 3146: 3140: 3134: 3114: 3109: 3104: 3097: 3093: 3089: 3084: 3068: 3064: 3060: 3057: 3054: 3049: 3044: 3031: 3026: 3010: 3007: 3003: 2999: 2996: 2993: 2988: 2983: 2972: 2968: 2963: 2952: 2947: 2944: 2941: 2935: 2927: 2922: 2918: 2914: 2908: 2900: 2896: 2885: 2881: 2875: 2871: 2867: 2864: 2858: 2844: 2836: 2835: 2834: 2831: 2829: 2821: 2813: 2805: 2773: 2769: 2763: 2759: 2755: 2752: 2745: 2741: 2731: 2728: 2721: 2720: 2719: 2690: 2686: 2683: 2680: 2677: 2670: 2666: 2656: 2645: 2637: 2636: 2635: 2632: 2630: 2626: 2622: 2614: 2610: 2605: 2594:10 years 2578: 2564: 2560: 2556: 2543: 2539: 2531: 2527: 2522: 2520: 2515: 2514: 2510: 2505: 2497: 2495: 2493: 2473: 2468: 2465: 2460: 2455: 2451: 2447: 2444: 2441: 2434: 2433: 2432: 2430: 2411: 2403: 2399: 2395: 2392: 2381: 2378: 2369: 2366: 2363: 2360: 2357: 2345: 2344: 2343: 2326: 2323: 2314: 2311: 2308: 2305: 2300: 2296: 2285: 2282: 2270: 2269: 2268: 2243: 2237: 2234: 2231: 2227: 2222: 2213: 2205: 2204: 2203: 2186: 2180: 2177: 2174: 2170: 2165: 2153: 2146: 2145: 2144: 2141: 2116: 2108: 2105: 2102: 2097: 2094: 2090: 2085: 2073: 2066: 2065: 2064: 2043: 2034: 2027: 2024: 2019: 2016: 2010: 2007: 2003: 1999: 1996: 1993: 1988: 1985: 1981: 1976: 1966: 1963: 1958: 1955: 1949: 1946: 1939: 1935: 1932: 1926: 1923: 1910: 1904: 1900: 1897: 1891: 1888: 1884: 1880: 1877: 1874: 1869: 1866: 1862: 1857: 1850: 1847: 1840: 1833: 1832: 1831: 1827: 1825: 1822:which is the 1806: 1797: 1791: 1787: 1784: 1778: 1775: 1771: 1767: 1764: 1761: 1756: 1753: 1749: 1744: 1738: 1735: 1732: 1728: 1723: 1717: 1714: 1710: 1705: 1702: 1695: 1694: 1693: 1689: 1685: 1675: 1661: 1651: 1642: 1634: 1629: 1610: 1605: 1595: 1591: 1579: 1574: 1566: 1555: 1550: 1542: 1528: 1524: 1520: 1517: 1512: 1502: 1498: 1486: 1481: 1473: 1462: 1457: 1449: 1435: 1430: 1424: 1421: 1417: 1412: 1407: 1404: 1399: 1391: 1376: 1375: 1374: 1357: 1351: 1348: 1342: 1338: 1332: 1329: 1326: 1323: 1320: 1313: 1312: 1311: 1307: 1290: 1285: 1263: 1259: 1255: 1250: 1242: 1227: 1221: 1217: 1214: 1208: 1205: 1201: 1197: 1192: 1187: 1179: 1166: 1160: 1156: 1153: 1147: 1144: 1140: 1136: 1133: 1128: 1120: 1105: 1104: 1103: 1102:has a metric 1101: 1096: 1093: 1089: 1081: 1079: 1078: 1073: 1069: 1065: 1061: 1057: 1049: 1047: 1044: 1038: 1026: 1022: 1018: 1014: 1005: 1000: 998: 994: 990: 986: 981: 979: 974: 970: 966: 961: 959: 955: 951: 947: 939: 935: 930: 926: 924: 923:event horizon 919: 915: 910: 908: 904: 900: 896: 892: 888: 877: 874: 866: 856: 852: 846: 845: 840:This section 838: 834: 829: 828: 822: 820: 818: 814: 810: 805: 802: 797: 795: 791: 787: 783: 782:event horizon 779: 775: 771: 760: 755: 753: 748: 746: 741: 740: 738: 737: 731: 721: 718: 713: 707: 706: 705: 704: 697: 696: 692: 690: 687: 685: 682: 680: 677: 675: 672: 670: 667: 665: 662: 660: 657: 655: 652: 650: 647: 645: 642: 640: 637: 635: 634:Chandrasekhar 632: 630: 627: 625: 622: 620: 617: 615: 612: 610: 607: 605: 602: 600: 597: 595: 592: 590: 587: 585: 582: 580: 577: 575: 572: 570: 567: 565: 562: 560: 557: 555: 552: 550: 549:Schwarzschild 547: 545: 542: 540: 537: 535: 532: 530: 527: 526: 518: 517: 510: 509:Hartle–Thorne 507: 505: 502: 500: 497: 495: 492: 490: 487: 485: 482: 480: 477: 475: 472: 470: 467: 465: 462: 460: 457: 455: 452: 450: 447: 445: 442: 440: 437: 435: 432: 430: 427: 424: 420: 419:Schwarzschild 417: 416: 412: 406: 405: 394: 391: 389: 386: 385: 384: 383: 378: 373: 370: 368: 365: 363: 360: 359: 358: 357: 352: 347: 344: 342: 339: 337: 334: 332: 329: 327: 324: 322: 319: 318: 317: 316: 311: 301: 298: 297: 292: 291: 280: 277: 275: 272: 270: 267: 266: 265: 264: 261: 257: 252: 249: 247: 244: 242: 241:Event horizon 239: 237: 234: 232: 229: 227: 224: 222: 219: 217: 214: 212: 209: 207: 204: 203: 202: 201: 191: 190: 183: 180: 178: 175: 173: 170: 168: 165: 164: 156: 155: 150: 147: 142: 139: 137: 134: 132: 129: 128: 126: 124: 121: 120: 119: 118: 100: 97: 93: 88: 84: 79: 76: 72: 65: 60: 57: 53: 43: 39: 38: 35: 31: 19: 7397:Lucy Hawking 7393:(first wife) 7371: 7363: 7355: 7347: 7339: 7331: 7323: 7305: 7297: 7289: 7281: 7257: 7240: 7232: 7224: 7216: 7208: 7200: 7181: 7173: 7165: 7157: 7149: 7141: 7133: 7125: 7117: 7109: 7101: 7093: 7020: 6955: 6918:Applications 6808:Supergravity 6715:Unruh effect 6704: 6622:Quantum foam 6617:Planck units 6612:IR/UV mixing 6587:Causal patch 6472: 6466: 6436: 6390: 6384: 6361:the original 6340: 6336: 6292: 6286: 6242: 6236: 6193: 6187: 6152: 6146: 6102: 6096: 6052: 6046: 5986: 5980: 5937: 5931: 5888: 5882: 5844: 5838: 5804: 5798: 5795:Page, Don N. 5761: 5755: 5730: 5720: 5708:. Retrieved 5702: 5692: 5641: 5635: 5628: 5616:. Retrieved 5612:the original 5607: 5597: 5546: 5542: 5532: 5473: 5469: 5459: 5416: 5410: 5400: 5357: 5351: 5345: 5333:. Retrieved 5326: 5316: 5307:CERN Courier 5305: 5295: 5244: 5238: 5232: 5189: 5183: 5174: 5153: 5110: 5104: 5098: 5055: 5049: 5043: 5000: 4994: 4988: 4951: 4947: 4937: 4910: 4904: 4853: 4847: 4841: 4790: 4784: 4778: 4745: 4739: 4733: 4708: 4702: 4693: 4650: 4644: 4638: 4617: 4605:. Retrieved 4594:10261/140585 4559: 4554: 4541: 4516: 4512: 4485: 4458:. Retrieved 4454:Ethan Siegel 4447: 4438: 4412: 4406: 4400: 4385: 4349: 4343: 4290: 4284: 4278: 4227: 4223: 4217: 4184: 4178: 4168: 4141: 4132: 4107: 4101: 4098:Page, Don N. 4070: 4063: 4038: 4017: 4007: 3972: 3968: 3958: 3938: 3928: 3915: 3890: 3886: 3880: 3872: 3867: 3859: 3852:. Retrieved 3848: 3816: 3789: 3731: 3727: 3710:the original 3705: 3695: 3680:Unruh effect 3632: 3617: 3603: 3600:Experimental 3583: 3563: 3542: 3511: 3489: 3486: 3373: 3361: 3348: 3340: 3336: 3325:An outgoing 3324: 3312:Unruh effect 3309: 3279: 3230: 3215: 3153: 3144: 3138: 3132: 3129: 2832: 2793: 2716: 2633: 2606: 2579: 2523: 2512: 2508: 2501: 2488: 2429:Planck units 2426: 2341: 2267:is added is 2258: 2201: 2139: 2131: 2058: 1828: 1824:Unruh effect 1821: 1690: 1683: 1673: 1659: 1649: 1640: 1632: 1630:in terms of 1625: 1372: 1308: 1305: 1097: 1088:Unruh effect 1085: 1076: 1053: 1001: 982: 962: 949: 943: 937: 911: 907:John Wheeler 884: 869: 860: 849:Please help 844:verification 841: 808: 806: 798: 769: 768: 694: 654:Raychaudhuri 123:Introduction 7484:Black holes 6875:Causal sets 6725:Black holes 6326:Smolin, Lee 4711:: 727–745. 3854:1 September 3608:, in which 3322:the modes. 3253:Planck mass 1050:Formulation 1039:, or about 993:temperature 978:evaporating 895:black holes 669:van Stockum 599:Oppenheimer 454:Kerr–Newman 246:Singularity 7478:Categories 7399:(daughter) 7317:Television 6940:Multiverse 6782:Approaches 6660:CGHS model 6647:Toy models 6582:CA-duality 6500:10023/4760 5556:1910.09363 5483:1809.00913 5426:1510.00621 5165:1802.00100 4961:2001.08833 4607:27 October 4569:1502.01589 3687:References 3626:employing 3526:Bekenstein 3365:10 kg 3343:white hole 3290:wavelength 3245:gamma rays 3199:10 kg 3179:10 kg 3162:solar mass 2575:10 kg 2550:10 kg 1033:10 kg 1017:billionths 1004:solar mass 967:physicist 794:telescopes 778:black hole 522:Scientists 354:Formalisms 302:Formalisms 251:Black hole 177:World line 7456:Astronomy 7419:Namesakes 6956:See also: 6895:Spin foam 6675:RST model 6317:121117052 5854:1209.2243 5710:April 30, 5651:1009.4634 5589:230508375 5581:1745-2481 5524:119327617 5508:1476-4687 5451:119197166 5328:The Times 5287:119375071 5145:119039723 4954:(2): 21. 4602:119262962 4325:119230843 4300:0709.2380 4160:832158297 3982:1205.5251 3907:120254309 3756:1476-4687 3502:10 s 3434:∗ 3405:∗ 3392:∼ 3389:τ 3369:10 s 3352:Minkowski 3316:spacetime 3301:frequency 3098:⊙ 3061:× 3055:≈ 3008:− 3000:× 2994:≈ 2948:π 2933:ℏ 2893:ℏ 2868:π 2756:π 2738:ℏ 2681:π 2663:ℏ 2581:billion) 2524:In 1976, 2448:π 2396:π 2367:π 2312:π 2235:π 2178:π 2160:∞ 2098:π 2080:∞ 2011:− 1989:π 1950:− 1927:− 1892:− 1870:π 1779:− 1757:π 1739:ρ 1736:π 1718:π 1711:α 1626:which is 1596:⊥ 1567:ρ 1543:τ 1525:ρ 1521:− 1503:⊥ 1474:ρ 1418:ρ 1408:− 1339:ρ 1278:Ω 1209:− 1148:− 1137:− 1054:In 1972, 1041:133  958:spacetime 614:Robertson 579:Friedmann 574:Eddington 564:Nordström 554:de Sitter 411:Solutions 336:Geodesics 331:Friedmann 313:Equations 299:Equations 260:Spacetime 195:Phenomena 101:ν 98:μ 89:κ 80:ν 77:μ 69:Λ 61:ν 58:μ 6803:M-theory 6763:ER = EPR 6602:Graviton 6228:28276606 6137:11863375 6087:14275281 5923:17033284 5833:(1974). 5676:21231233 5516:31142857 5331:. London 5279:11690198 5035:18980849 4948:Universe 4896:14228817 4888:12059412 4833:26432764 4825:10019680 4770:10014053 4685:16668175 4391:☉ 4382:27717447 4374:17817517 4262:10055062 4209:55539246 4140:(1994). 3936:(1988). 3638:See also 3305:infinite 3170:☉ 2615:of mass 2601:☉ 2586:☉ 2561:and the 2532:of mass 2526:Don Page 2028:′ 1967:′ 1851:′ 1090:and the 1012:☉ 887:Einstein 863:May 2023 823:Overview 730:Category 594:LemaĂźtre 559:Reissner 544:PoincarĂ© 529:Einstein 474:Taub–NUT 439:Wormhole 423:interior 136:Timeline 7468:Physics 7442:Portals 7298:Hawking 7290:Hawking 7251:Memoirs 7194:Fiction 7087:Science 7014:Physics 6477:Bibcode 6425:9966483 6405:Bibcode 6345:Bibcode 6297:Bibcode 6277:6702415 6257:Bibcode 6208:Bibcode 6167:Bibcode 6117:Bibcode 6067:Bibcode 6021:6411086 6001:Bibcode 5972:5727582 5952:Bibcode 5903:Bibcode 5859:Bibcode 5809:Bibcode 5786:4290107 5766:Bibcode 5684:2245320 5656:Bibcode 5561:Bibcode 5488:Bibcode 5431:Bibcode 5392:1321910 5372:Bibcode 5259:Bibcode 5224:1203487 5204:Bibcode 5125:Bibcode 5090:9966483 5070:Bibcode 5015:Bibcode 4966:Bibcode 4925:Bibcode 4868:Bibcode 4805:Bibcode 4750:Bibcode 4713:Bibcode 4665:Bibcode 4574:Bibcode 4521:Bibcode 4460:21 June 4417:Bibcode 4354:Bibcode 4345:Science 4305:Bibcode 4270:9363821 4242:Bibcode 4189:Bibcode 4112:Bibcode 3987:Bibcode 3764:4290107 3736:Bibcode 3530:Hawking 3286:quantum 2818:is the 2810:is the 2802:is the 1678:⁠ 1664:⁠ 1654:⁠ 1637:⁠ 1628:Rindler 965:British 950:through 649:Hawking 644:Penrose 619:Bardeen 609:Wheeler 539:Hilbert 534:Lorentz 494:pp-wave 131:History 7384:Family 7328:(1988) 7309:(2014) 7301:(2013) 7293:(2004) 7285:(1991) 7262:(2013) 7243:(2020) 7237:(2016) 7229:(2014) 7221:(2011) 7213:(2009) 7205:(2007) 7178:(2018) 7170:(2011) 7162:(2010) 7154:(2005) 7146:(2005) 7138:(2002) 7130:(2001) 7122:(1996) 7114:(1993) 7106:(1988) 7098:(1973) 6863:Others 6449:  6423:  6374:Ansari 6315:  6275:  6226:  6135:  6085:  6019:  5970:  5921:  5784:  5757:Nature 5682:  5674:  5587:  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Index

Bekenstein-Hawking radiation
General relativity
Spacetime curvature schematic
Introduction
History
Timeline
Tests
Mathematical formulation
Equivalence principle
Special relativity
World line
Pseudo-Riemannian manifold
Kepler problem
Gravitational lensing
Gravitational redshift
Gravitational time dilation
Gravitational waves
Frame-dragging
Geodetic effect
Event horizon
Singularity
Black hole
Spacetime
Spacetime diagrams
Minkowski spacetime
Einstein–Rosen bridge
Linearized gravity
Einstein field equations
Friedmann
Geodesics

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