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Delta potential

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917:. Qualitatively, it corresponds to a potential which is zero everywhere, except at a single point, where it takes an infinite value. This can be used to simulate situations where a particle is free to move in two regions of space with a barrier between the two regions. For example, an electron can move almost freely in a conducting material, but if two conducting surfaces are put close together, the interface between them acts as a barrier for the electron that can be approximated by a delta potential. 3141: 1657: 5666: 2017: 4139: 940: 2905: 1407: 3742:, that is, a barrier has the same probability of reflecting the particle as a well. This is a significant difference from classical mechanics, where the reflection probability would be 1 for the barrier (the particle simply bounces back), and 0 for the well (the particle passes through the well undisturbed). 4019:
The above model is one-dimensional while the space around us is three-dimensional. So, in fact, one should solve the Schrödinger equation in three dimensions. On the other hand, many systems only change along one coordinate direction and are translationally invariant along the others. The Schrödinger
2630: 3982: 4012:(STM) relies on this tunneling effect. In that case, the barrier is due to the air between the tip of the STM and the underlying object. The strength of the barrier is related to the separation being stronger the further apart the two are. For a more general model of this situation, see 4005:. Often, the surfaces of such materials are covered with oxide layers or are not ideal for other reasons. This thin, non-conducting layer may then be modeled by a local delta-function potential as above. Electrons may then tunnel from one material to the other giving rise to a current. 5016: 4782: 3736: 1831: 2725: 3013: 3506: 2644: 1808:
A second relation can be found by studying the derivative of the wavefunction. Normally, we could also impose differentiability at the origin, but this is not possible because of the delta potential. However, if we integrate the Schrödinger equation around
4635: 4283: 2417: 1109: 2410: 3127: 3748: 4811: 4640: 3517: 1652:{\displaystyle \psi (x)={\begin{cases}\psi _{\text{L}}(x)=A_{\text{r}}e^{ikx}+A_{\text{l}}e^{-ikx},&{\text{ if }}x<0,\\\psi _{\text{R}}(x)=B_{\text{r}}e^{ikx}+B_{\text{l}}e^{-ikx},&{\text{ if }}x>0,\end{cases}}} 2259: 1325: 117: 1804: 2912: 3325: 2142: 2012:{\displaystyle -{\frac {\hbar ^{2}}{2m}}\int _{-\varepsilon }^{+\varepsilon }\psi ''(x)\,dx+\int _{-\varepsilon }^{+\varepsilon }V(x)\psi (x)\,dx=E\int _{-\varepsilon }^{+\varepsilon }\psi (x)\,dx.} 2900:{\displaystyle \psi (x)={\begin{cases}\psi _{\text{L}}(x)=A_{\text{l}}e^{\kappa x},&{\text{ if }}x\leq 0,\\\psi _{\text{R}}(x)=B_{\text{r}}e^{-\kappa x},&{\text{ if }}x\geq 0.\end{cases}}} 5457: 3208: 4094: 1400: 5437: 5276: 4518: 1178: 4155: 981: 2268: 3029: 4509: 4430: 5131: 4398: 5195: 5049: 4477: 2701:
is imaginary, and the wave functions which were oscillating for positive energies in the calculation above are now exponentially increasing or decreasing functions of
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is positive. The delta has been defined to occur at the origin for simplicity; a shift in the delta function's argument does not change any of the following results.
928:, which is obtained if one maintains the product of the width of the well and the potential constant while decreasing the well's width and increasing the potential. 5315: 3991:
The calculation presented above may at first seem unrealistic and hardly useful. However, it has proved to be a suitable model for a variety of real-life systems.
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materials. In the bulk of the materials, the motion of the electrons is quasi-free and can be described by the kinetic term in the above Hamiltonian with an
2147: 884: 2625:{\displaystyle {\begin{cases}A_{r}+A_{l}-B_{r}-B_{l}&=0,\\-A_{r}+A_{l}+B_{r}-B_{l}&={\frac {2m\lambda }{ik\hbar ^{2}}}(A_{r}+A_{l}).\end{cases}}} 591: 135: 3977:{\displaystyle T=|t|^{2}=1-R={\cfrac {1}{1+{\cfrac {m^{2}\lambda ^{2}}{\hbar ^{4}k^{2}}}}}={\cfrac {1}{1+{\cfrac {m\lambda ^{2}}{2\hbar ^{2}E}}}}.} 47: 3514:
of the model, the amplitudes for incidence from the right are the same as those from the left. The result is that there is a non-zero probability
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The graph of the bound state wavefunction solution to the delta function potential is continuous everywhere, but its derivative is not defined at
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In general, due to the presence of the delta potential in the origin, the coefficients of the solution need not be the same in both half-spaces:
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must be negative, that is, the bound state only exists for the well, and not for the barrier. The Fourier transform of this wave function is a
5686: 5011:{\displaystyle d_{\pm }(\lambda )={\frac {1}{2}}q(\lambda +1)\pm {\frac {1}{2}}\left\{q^{2}(1+\lambda )^{2}-4\lambda q^{2}\left\right\}^{1/2},} 364: 4777:{\displaystyle {\begin{vmatrix}q-d&qe^{-dR}\\q\lambda e^{-dR}&q\lambda -d\end{vmatrix}}=0,\quad {\text{where }}E=-{\frac {d^{2}}{2}}.} 3731:{\displaystyle R=|r|^{2}={\cfrac {1}{1+{\cfrac {\hbar ^{4}k^{2}}{m^{2}\lambda ^{2}}}}}={\cfrac {1}{1+{\cfrac {2\hbar ^{2}E}{m\lambda ^{2}}}}}} 547: 5641: 3999: 470: 4443:(shown in brown in the diagram). Keeping in mind the relationship of this model with its three-dimensional molecular counterpart, we use 1361: 5200: 130: 5163:(shown in green in the diagram). They represent an approximation of the two lowest discrete energy states of the three-dimensional 931:
This article, for simplicity, only considers a one-dimensional potential well, but analysis could be expanded to more dimensions.
5706: 5701: 3008:{\displaystyle {\begin{cases}A_{\text{l}}=B_{\text{r}}={\sqrt {\kappa }},\\\kappa =-{\frac {m\lambda }{\hbar ^{2}}},\end{cases}}} 219: 3501:{\displaystyle t={\cfrac {1}{1-{\cfrac {m\lambda }{i\hbar ^{2}k}}}},\quad r={\cfrac {1}{{\cfrac {i\hbar ^{2}k}{m\lambda }}-1}}.} 326: 306: 5380:. For these specific parameters, there are many interesting properties that occur, one of which is the unusual effect that the 5197:
and are useful in its analysis. Analytical solutions for the energy eigenvalues for the case of symmetric charges are given by
877: 174: 1133: 296: 4016:. The delta function potential barrier is the limiting case of the model considered there for very high and narrow barriers. 566: 4142:
The symmetric and anti-symmetric wavefunctions for the double-well Dirac delta function model with "internuclear" distance
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The double-well Dirac delta function models a diatomic hydrogen molecule by the corresponding Schrödinger equation:
3264:. To find the amplitudes for reflection and transmission for incidence from the left, we put in the above equations 5696: 5670: 5452: 4288: 4104: 870: 522: 3231:
The quantum case can be studied in the following situation: a particle incident on the barrier from the left side
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One obtains a relation between the coefficients by imposing that the wavefunction be continuous at the origin:
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The "+" case corresponds to a wave function symmetric about the midpoint (shown in red in the diagram), where
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equation may then be reduced to the case considered here by an Ansatz for the wave function of the type
2705:(see above). Requiring that the wave functions do not diverge at infinity eliminates half of the terms: 1332: 925: 254: 239: 4403: 166: 5149:. Correspondingly, the "−" case is the wave function that is anti-symmetric about the midpoint, where 4099:
Alternatively, it is possible to generalize the delta function to exist on the surface of some domain
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charges, and for that matter the three-dimensional molecular problem, the solutions are given by a
4630:{\displaystyle \psi (x)=Ae^{-d\left|x+{\frac {R}{2}}\right|}+Be^{-d\left|x-{\frac {R}{2}}\right|}.} 3020: 670: 478: 396: 224: 204: 156: 5650:
For the 3-dimensional case look for the "delta shell potential"; further see K. Gottfried (1966),
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Lange, Rutger-Jan (2012), "Potential theory, path integrals and the Laplacian of the indicator",
5427: 5408: 5330: 5283: 5166: 1336: 391: 316: 249: 161: 5021: 4450: 4278:{\displaystyle -{\frac {\hbar ^{2}}{2m}}{\frac {d^{2}\psi (x)}{dx^{2}}}+V(x)\psi (x)=E\psi (x),} 1104:{\displaystyle -{\frac {\hbar ^{2}}{2m}}{\frac {d^{2}\psi (x)}{dx^{2}}}+V(x)\psi (x)=E\psi (x),} 5637: 5616: 5398: 2405:{\displaystyle -{\frac {\hbar ^{2}}{2m}}ik(-A_{r}+A_{l}+B_{r}-B_{l})+\lambda (A_{r}+A_{l})=0.} 898: 825: 800: 740: 735: 635: 601: 581: 179: 38: 5343: 3122:{\displaystyle E=-{\frac {\hbar ^{2}\kappa ^{2}}{2m}}=-{\frac {m\lambda ^{2}}{2\hbar ^{2}}}.} 5608: 5527: 965: 830: 820: 810: 710: 690: 675: 645: 513: 401: 5293: 5432: 1239:). In each of these parts the potential is zero, and the Schrödinger equation reduces to 1116: 855: 725: 705: 451: 291: 5604: 5523: 17: 4787: 906: 790: 750: 730: 700: 680: 630: 596: 446: 436: 229: 4637:
Matching of the wavefunction at the Dirac delta-function peaks yields the determinant
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is the "internuclear" distance with Dirac delta-function (negative) peaks located at
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van Dijk, W.; Kiers, K. A. (1992). "Time delay in simple one-dimensional systems".
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is a formally adjustable parameter. From the single-well case, we can infer the "
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The boundary conditions thus give the following restrictions on the coefficients
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Dirac Delta function model which represents a one-dimensional version of the
2028:, the right-hand side of this equation vanishes; the left-hand side becomes 1320:{\displaystyle {\frac {d^{2}\psi }{dx^{2}}}=-{\frac {2mE}{\hbar ^{2}}}\psi ;} 112:{\displaystyle i\hbar {\frac {d}{dt}}|\Psi \rangle ={\hat {H}}|\Psi \rangle } 286: 2909:
From the boundary conditions and normalization conditions, it follows that
1799:{\displaystyle \psi (0)=\psi _{L}(0)=\psi _{R}(0)=A_{r}+A_{l}=B_{r}+B_{l},} 5665: 3214:
For positive energies, the particle is free to move in either half-space:
3140: 5575:"The Calculation of Exchange Forces: General Results and Specific Models" 3511: 665: 4110:
The delta function model is actually a one-dimensional version of the
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for the particle to be reflected. This does not depend on the sign of
939: 4512: 2254:{\displaystyle \int _{-\varepsilon }^{+\varepsilon }\psi ''(x)\,dx=.} 1124: 5612: 5290:. Note that the lowest energy corresponds to the symmetric solution 5514: 4137: 3139: 2642: 938: 5599:(6). American Association of Physics Teachers (AAPT): 520–527. 5051:. For the case of equal charges (symmetric homonuclear case), 4122:
The delta function model becomes particularly useful with the
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List of quantum-mechanical systems with analytical solutions
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In any one-dimensional attractive potential there will be a
3001: 2893: 2618: 2137:{\displaystyle -{\frac {\hbar ^{2}}{2m}}+\lambda \psi (0),} 1645: 5477:"quantum mechanics - Wave function with a delta potential" 5438:
Particle in a one-dimensional lattice (periodic potential)
3210:. Dashed: classical result. Solid line: quantum mechanics. 5373:. Thus, one has a non-trivial bound state solution with 3940: 3918: 3904: 3892: 3851: 3822: 3808: 3796: 3700: 3675: 3661: 3649: 3608: 3579: 3565: 3553: 3468: 3443: 3435: 3423: 3379: 3364: 3350: 3338: 3228:. It may be scattered at the delta-function potential. 4649: 3943: 3921: 3907: 3895: 3854: 3825: 3811: 3799: 3703: 3678: 3664: 3652: 3611: 3582: 3568: 3556: 3471: 3446: 3438: 3426: 3382: 3367: 3353: 3341: 5346: 5296: 5203: 5169: 5064: 5024: 4814: 4790: 4643: 4521: 4485: 4453: 4406: 4291: 4158: 4026: 3751: 3520: 3328: 3165: 3032: 2915: 2728: 2420: 2271: 2150: 2034: 1834: 1684: 1410: 1364: 1245: 1136: 984: 50: 3994:
One such example regards the interfaces between two
3203:{\displaystyle {\frac {m\lambda ^{2}}{2\hbar ^{2}}}} 3152:) probability of a delta potential well. The energy 4089:{\displaystyle \Psi (x,y,z)=\psi (x)\phi (y,z)\,\!} 5365: 5309: 5270: 5189: 5125: 5043: 5010: 4796: 4776: 4629: 4503: 4471: 4424: 4392: 4277: 4088: 3976: 3730: 3500: 3202: 3121: 3007: 2899: 2624: 2404: 2253: 2136: 2011: 1798: 1651: 1394: 1319: 1172: 1103: 111: 4085: 27:Model of an energy potential in quantum mechanics 1395:{\displaystyle k={\frac {\sqrt {2mE}}{\hbar }}.} 5636:(2nd ed.). Prentice Hall. pp. 68–78. 5271:{\displaystyle d_{\pm }=q+W(\pm qRe^{-qR})/R,} 1669:represents a wave traveling to the right, and 1659:where, in the case of positive energies (real 5414:Particle in a spherically symmetric potential 1225:The potential splits the space in two parts ( 878: 8: 3318:even though we do not have any equations in 106: 80: 5336:One of the most interesting cases is when 3297:(no incoming particle from the right) and 885: 871: 29: 5513: 5351: 5345: 5331:Lambert W function § Generalizations 5301: 5295: 5257: 5242: 5208: 5202: 5180: 5175: 5170: 5168: 5104: 5096: 5069: 5063: 5035: 5023: 4995: 4991: 4961: 4950: 4929: 4910: 4888: 4868: 4837: 4819: 4813: 4789: 4760: 4754: 4740: 4696: 4670: 4644: 4642: 4607: 4589: 4562: 4544: 4520: 4484: 4452: 4405: 4367: 4332: 4290: 4218: 4191: 4184: 4168: 4162: 4157: 4084: 4025: 3952: 3944: 3930: 3922: 3915: 3908: 3896: 3889: 3870: 3860: 3855: 3841: 3831: 3826: 3819: 3812: 3800: 3793: 3772: 3767: 3758: 3750: 3712: 3704: 3687: 3679: 3672: 3665: 3653: 3646: 3627: 3617: 3612: 3598: 3588: 3583: 3576: 3569: 3557: 3550: 3541: 3536: 3527: 3519: 3472: 3455: 3447: 3440: 3439: 3427: 3420: 3391: 3383: 3368: 3361: 3354: 3342: 3335: 3327: 3191: 3176: 3166: 3164: 3107: 3092: 3082: 3059: 3049: 3042: 3031: 2987: 2973: 2950: 2941: 2928: 2916: 2914: 2876: 2859: 2849: 2827: 2802: 2788: 2778: 2756: 2744: 2727: 2603: 2590: 2574: 2550: 2539: 2526: 2513: 2500: 2472: 2459: 2446: 2433: 2421: 2419: 2387: 2374: 2352: 2339: 2326: 2313: 2281: 2275: 2270: 2189: 2163: 2155: 2149: 2092: 2067: 2044: 2038: 2033: 1999: 1978: 1970: 1953: 1920: 1912: 1898: 1872: 1864: 1844: 1838: 1833: 1787: 1774: 1761: 1748: 1726: 1704: 1683: 1625: 1605: 1595: 1576: 1566: 1544: 1519: 1499: 1489: 1470: 1460: 1438: 1426: 1409: 1371: 1363: 1303: 1286: 1271: 1253: 1246: 1244: 1135: 1044: 1017: 1010: 994: 988: 983: 98: 87: 86: 72: 57: 49: 5652:Quantum Mechanics Volume I: Fundamentals 1173:{\displaystyle V(x)=\lambda \delta (x),} 5556:Dimensional Scaling in Chemical Physics 5554:, J.S. Avery, and O. Goscinski (eds.), 5468: 4454: 4165: 3949: 3857: 3684: 3585: 3452: 3388: 3188: 3104: 3046: 2984: 2571: 2278: 2041: 1841: 1384: 1300: 991: 54: 37: 5058:, and the pseudo-quadratic reduces to 3026:The energy of the bound state is then 4130:, as shown in the following section. 1130:The delta potential is the potential 7: 3745:The probability for transmission is 2662:. To find its energy, note that for 964:of a particle in one dimension in a 5569:T. C. Scott, J. F. Babb, 4504:{\displaystyle 0<\lambda <1} 4419: 4027: 417:Sum-over-histories (path integral) 103: 77: 33:Part of a series of articles about 25: 5634:Introduction to Quantum Mechanics 5340: â‰€ 1, which results in 4425:{\displaystyle 0<R<\infty } 4118:method developed by the group of 5664: 5126:{\displaystyle d_{\pm }=q\left.} 1218:Solving the Schrödinger equation 909:mathematically described by the 4804:is found to be governed by the 4739: 3413: 2261:Substituting the definition of 5502:Journal of High Energy Physics 5254: 5226: 4973: 4967: 4907: 4894: 4862: 4850: 4831: 4825: 4531: 4525: 4301: 4295: 4269: 4263: 4251: 4245: 4239: 4233: 4206: 4200: 4081: 4069: 4063: 4057: 4048: 4030: 3768: 3759: 3537: 3528: 3310:(transmission), and solve for 2839: 2833: 2768: 2762: 2738: 2732: 2609: 2583: 2393: 2367: 2358: 2303: 2245: 2242: 2233: 2219: 2210: 2199: 2186: 2180: 2128: 2122: 2110: 2107: 2101: 2082: 2076: 2060: 1996: 1990: 1950: 1944: 1938: 1932: 1895: 1889: 1738: 1732: 1716: 1710: 1694: 1688: 1556: 1550: 1450: 1444: 1420: 1414: 1164: 1158: 1146: 1140: 1095: 1089: 1077: 1071: 1065: 1059: 1032: 1026: 920:The delta potential well is a 567:Relativistic quantum mechanics 99: 92: 73: 1: 5687:Quantum mechanical potentials 5654:, ch. III, sec. 15. 4393:{\displaystyle V(x)=-q\left,} 4014:Finite potential barrier (QM) 4010:scanning tunneling microscope 1358:is related to the energy by 607:Quantum statistical mechanics 5632:Griffiths, David J. (2005). 5581:, 99, pp. 2841–2854, (1993). 5190:{\displaystyle {\ce {H2^+}}} 2722:. The wave function is then 2265:into this expression yields 1329:linear differential equation 5593:American Journal of Physics 5419:Quantum harmonic oscillator 4285:where the potential is now 3015:from which it follows that 1675:one traveling to the left. 577:Quantum information science 5723: 5453:Laplacian of the indicator 5044:{\displaystyle d=d_{\pm }} 4472:{\displaystyle \hbar =m=1} 4105:Laplacian of the indicator 5384:is unity at zero energy. 4515:" for the solution to be 5573:and John D. Morgan III, 5382:transmission coefficient 5018:which has two solutions 612:Quantum machine learning 365:Wheeler's delayed-choice 18:Delta function potential 5707:Exactly solvable models 5532:10.1007/JHEP11(2012)032 5448:Holstein–Herring method 5366:{\displaystyle d_{-}=0} 3987:Remarks and application 1208:delta potential barrier 322:Leggett–Garg inequality 5481:Physics Stack Exchange 5443:Hydrogen molecular ion 5367: 5311: 5272: 5191: 5127: 5045: 5012: 4798: 4778: 4631: 4505: 4473: 4426: 4394: 4279: 4149: 4134:Double delta potential 4090: 3978: 3732: 3502: 3242:. It may be reflected 3211: 3204: 3123: 3009: 2901: 2655: 2626: 2406: 2255: 2138: 2013: 1800: 1653: 1396: 1335:, whose solutions are 1321: 1174: 1105: 943: 935:Single delta potential 113: 5404:Finite potential well 5368: 5312: 5310:{\displaystyle d_{+}} 5273: 5192: 5128: 5046: 5013: 4799: 4779: 4632: 4506: 4474: 4427: 4395: 4280: 4141: 4128:Hydrogen molecule ion 4091: 3979: 3733: 3503: 3274:(incoming particle), 3205: 3143: 3124: 3010: 2902: 2646: 2627: 2407: 2256: 2139: 2014: 1801: 1654: 1397: 1333:constant coefficients 1322: 1175: 1106: 946:The time-independent 942: 926:finite potential well 307:Elitzur–Vaidman 297:Davisson–Germer 114: 5702:Schrödinger equation 5673:at Wikimedia Commons 5558:, Springer, (1992). 5344: 5294: 5201: 5167: 5062: 5022: 4812: 4788: 4641: 4519: 4483: 4451: 4404: 4289: 4156: 4120:Dudley R. Herschbach 4024: 3749: 3518: 3326: 3163: 3030: 2913: 2726: 2418: 2269: 2148: 2032: 1832: 1682: 1408: 1362: 1243: 1200:delta potential well 1193:Dirac delta function 1134: 982: 948:Schrödinger equation 915:generalized function 911:Dirac delta function 572:Quantum field theory 484:Consistent histories 121:Schrödinger equation 48: 5605:1992AmJPh..60..520V 5524:2012JHEP...11..032L 5185: 4116:dimensional scaling 4008:The operation of a 3942: 3920: 3906: 3894: 3853: 3824: 3810: 3798: 3702: 3677: 3663: 3651: 3610: 3581: 3567: 3555: 3470: 3445: 3437: 3425: 3381: 3366: 3352: 3340: 3021:Lorentzian function 2171: 2100: 2075: 1986: 1928: 1880: 1816:, over an interval 1337:linear combinations 1206:is negative, and a 360:Stern–Gerlach 157:Classical mechanics 5428:hydrogen-like atom 5409:Particle in a ring 5363: 5307: 5268: 5187: 5171: 5123: 5041: 5008: 4794: 4774: 4724: 4627: 4501: 4469: 4422: 4390: 4275: 4150: 4086: 3974: 3967: 3962: 3937: 3901: 3882: 3877: 3848: 3805: 3728: 3724: 3719: 3697: 3658: 3639: 3634: 3605: 3562: 3510:Due to the mirror 3498: 3491: 3480: 3465: 3432: 3406: 3401: 3376: 3347: 3212: 3200: 3148:) and reflection ( 3119: 3005: 3000: 2897: 2892: 2656: 2622: 2617: 2402: 2251: 2151: 2134: 2088: 2063: 2009: 1966: 1908: 1860: 1796: 1649: 1644: 1392: 1317: 1170: 1101: 944: 548:Von Neumann–Wigner 528:Objective-collapse 327:Mach–Zehnder 317:Leggett inequality 312:Franck–Hertz 162:Old quantum theory 109: 5697:Scattering theory 5669:Media related to 5643:978-0-13-111892-8 5399:Particle in a box 5317:. In the case of 5174: 4876: 4845: 4797:{\displaystyle d} 4769: 4743: 4615: 4570: 4375: 4340: 4225: 4182: 4114:according to the 3969: 3964: 3941: 3919: 3905: 3893: 3884: 3879: 3852: 3823: 3809: 3797: 3726: 3721: 3701: 3676: 3662: 3650: 3641: 3636: 3609: 3580: 3566: 3554: 3493: 3482: 3469: 3444: 3436: 3424: 3408: 3403: 3380: 3365: 3351: 3339: 3322:. The result is 3198: 3114: 3074: 2993: 2955: 2944: 2931: 2879: 2852: 2830: 2805: 2781: 2759: 2581: 2295: 2058: 1858: 1628: 1598: 1569: 1547: 1522: 1492: 1463: 1441: 1387: 1383: 1309: 1278: 1127:of the particle. 1051: 1008: 899:quantum mechanics 895: 894: 602:Scattering theory 582:Quantum computing 355:Schrödinger's cat 287:Bell's inequality 95: 70: 39:Quantum mechanics 16:(Redirected from 5714: 5668: 5647: 5625: 5624: 5588: 5582: 5567: 5561: 5549: 5543: 5542: 5517: 5497: 5491: 5490: 5488: 5487: 5473: 5379: 5372: 5370: 5369: 5364: 5356: 5355: 5316: 5314: 5313: 5308: 5306: 5305: 5282:is the standard 5277: 5275: 5274: 5269: 5261: 5253: 5252: 5213: 5212: 5196: 5194: 5193: 5188: 5186: 5184: 5179: 5172: 5159:, and is called 5158: 5143:, and is called 5142: 5132: 5130: 5129: 5124: 5119: 5115: 5114: 5113: 5109: 5108: 5074: 5073: 5057: 5050: 5048: 5047: 5042: 5040: 5039: 5017: 5015: 5014: 5009: 5004: 5003: 4999: 4990: 4986: 4985: 4981: 4980: 4979: 4966: 4965: 4934: 4933: 4915: 4914: 4893: 4892: 4877: 4869: 4846: 4838: 4824: 4823: 4806:pseudo-quadratic 4803: 4801: 4800: 4795: 4783: 4781: 4780: 4775: 4770: 4765: 4764: 4755: 4744: 4741: 4729: 4728: 4707: 4706: 4681: 4680: 4636: 4634: 4633: 4628: 4623: 4622: 4621: 4617: 4616: 4608: 4578: 4577: 4576: 4572: 4571: 4563: 4510: 4508: 4507: 4502: 4478: 4476: 4475: 4470: 4442: 4431: 4429: 4428: 4423: 4399: 4397: 4396: 4391: 4386: 4382: 4381: 4377: 4376: 4368: 4346: 4342: 4341: 4333: 4284: 4282: 4281: 4276: 4226: 4224: 4223: 4222: 4209: 4196: 4195: 4185: 4183: 4181: 4173: 4172: 4163: 4148: 4095: 4093: 4092: 4087: 4004: 3983: 3981: 3980: 3975: 3970: 3968: 3966: 3965: 3963: 3961: 3957: 3956: 3938: 3936: 3935: 3934: 3916: 3902: 3900: 3890: 3885: 3883: 3881: 3880: 3878: 3876: 3875: 3874: 3865: 3864: 3849: 3847: 3846: 3845: 3836: 3835: 3820: 3806: 3804: 3794: 3777: 3776: 3771: 3762: 3741: 3737: 3735: 3734: 3729: 3727: 3725: 3723: 3722: 3720: 3718: 3717: 3716: 3698: 3696: 3692: 3691: 3673: 3659: 3657: 3647: 3642: 3640: 3638: 3637: 3635: 3633: 3632: 3631: 3622: 3621: 3606: 3604: 3603: 3602: 3593: 3592: 3577: 3563: 3561: 3551: 3546: 3545: 3540: 3531: 3507: 3505: 3504: 3499: 3494: 3492: 3490: 3483: 3481: 3479: 3466: 3464: 3460: 3459: 3441: 3433: 3431: 3421: 3409: 3407: 3405: 3404: 3402: 3400: 3396: 3395: 3377: 3375: 3362: 3348: 3346: 3336: 3321: 3317: 3313: 3309: 3296: 3286: 3273: 3263: 3252: 3241: 3227: 3220: 3209: 3207: 3206: 3201: 3199: 3197: 3196: 3195: 3182: 3181: 3180: 3167: 3158: 3128: 3126: 3125: 3120: 3115: 3113: 3112: 3111: 3098: 3097: 3096: 3083: 3075: 3073: 3065: 3064: 3063: 3054: 3053: 3043: 3018: 3014: 3012: 3011: 3006: 3004: 3003: 2994: 2992: 2991: 2982: 2974: 2956: 2951: 2946: 2945: 2942: 2933: 2932: 2929: 2906: 2904: 2903: 2898: 2896: 2895: 2880: 2877: 2870: 2869: 2854: 2853: 2850: 2832: 2831: 2828: 2806: 2803: 2796: 2795: 2783: 2782: 2779: 2761: 2760: 2757: 2721: 2700: 2691: 2690: 2668: 2653: 2631: 2629: 2628: 2623: 2621: 2620: 2608: 2607: 2595: 2594: 2582: 2580: 2579: 2578: 2562: 2551: 2544: 2543: 2531: 2530: 2518: 2517: 2505: 2504: 2477: 2476: 2464: 2463: 2451: 2450: 2438: 2437: 2411: 2409: 2408: 2403: 2392: 2391: 2379: 2378: 2357: 2356: 2344: 2343: 2331: 2330: 2318: 2317: 2296: 2294: 2286: 2285: 2276: 2264: 2260: 2258: 2257: 2252: 2232: 2209: 2179: 2170: 2162: 2143: 2141: 2140: 2135: 2096: 2071: 2059: 2057: 2049: 2048: 2039: 2027: 2021:In the limit as 2018: 2016: 2015: 2010: 1985: 1977: 1927: 1919: 1888: 1879: 1871: 1859: 1857: 1849: 1848: 1839: 1827: 1815: 1805: 1803: 1802: 1797: 1792: 1791: 1779: 1778: 1766: 1765: 1753: 1752: 1731: 1730: 1709: 1708: 1674: 1668: 1662: 1658: 1656: 1655: 1650: 1648: 1647: 1629: 1626: 1619: 1618: 1600: 1599: 1596: 1587: 1586: 1571: 1570: 1567: 1549: 1548: 1545: 1523: 1520: 1513: 1512: 1494: 1493: 1490: 1481: 1480: 1465: 1464: 1461: 1443: 1442: 1439: 1401: 1399: 1398: 1393: 1388: 1373: 1372: 1357: 1350: 1344: 1326: 1324: 1323: 1318: 1310: 1308: 1307: 1298: 1287: 1279: 1277: 1276: 1275: 1262: 1258: 1257: 1247: 1238: 1231: 1213: 1205: 1190: 1179: 1177: 1176: 1171: 1122: 1114: 1110: 1108: 1107: 1102: 1052: 1050: 1049: 1048: 1035: 1022: 1021: 1011: 1009: 1007: 999: 998: 989: 977: 963: 887: 880: 873: 514:Superdeterminism 167:Bra–ket notation 118: 116: 115: 110: 102: 97: 96: 88: 76: 71: 69: 58: 30: 21: 5722: 5721: 5717: 5716: 5715: 5713: 5712: 5711: 5677: 5676: 5671:Delta potential 5661: 5644: 5631: 5628: 5613:10.1119/1.16866 5590: 5589: 5585: 5568: 5564: 5552:D.R. Herschbach 5550: 5546: 5499: 5498: 5494: 5485: 5483: 5475: 5474: 5470: 5466: 5433:Ring wave guide 5390: 5374: 5347: 5342: 5341: 5325:of the Lambert 5297: 5292: 5291: 5238: 5204: 5199: 5198: 5165: 5164: 5150: 5134: 5100: 5092: 5085: 5081: 5065: 5060: 5059: 5052: 5031: 5020: 5019: 4957: 4946: 4939: 4935: 4925: 4906: 4884: 4883: 4879: 4878: 4815: 4810: 4809: 4786: 4785: 4756: 4723: 4722: 4708: 4692: 4683: 4682: 4666: 4661: 4645: 4639: 4638: 4600: 4596: 4585: 4555: 4551: 4540: 4517: 4516: 4481: 4480: 4449: 4448: 4433: 4402: 4401: 4360: 4356: 4325: 4321: 4317: 4313: 4287: 4286: 4214: 4210: 4187: 4186: 4174: 4164: 4154: 4153: 4143: 4136: 4022: 4021: 4002: 3989: 3948: 3939: 3926: 3917: 3903: 3891: 3866: 3856: 3850: 3837: 3827: 3821: 3807: 3795: 3766: 3747: 3746: 3739: 3708: 3699: 3683: 3674: 3660: 3648: 3623: 3613: 3607: 3594: 3584: 3578: 3564: 3552: 3535: 3516: 3515: 3467: 3451: 3442: 3434: 3422: 3387: 3378: 3363: 3349: 3337: 3324: 3323: 3319: 3315: 3311: 3304: 3298: 3294: 3288: 3281: 3275: 3271: 3265: 3261: 3254: 3253:or transmitted 3250: 3243: 3239: 3232: 3222: 3215: 3187: 3183: 3172: 3168: 3161: 3160: 3159:is in units of 3153: 3138: 3103: 3099: 3088: 3084: 3066: 3055: 3045: 3044: 3028: 3027: 3016: 2999: 2998: 2983: 2975: 2961: 2960: 2937: 2924: 2917: 2911: 2910: 2891: 2890: 2874: 2855: 2845: 2823: 2820: 2819: 2800: 2784: 2774: 2752: 2745: 2724: 2723: 2719: 2712: 2706: 2680: 2678: 2670: 2663: 2648: 2641: 2616: 2615: 2599: 2586: 2570: 2563: 2552: 2545: 2535: 2522: 2509: 2496: 2490: 2489: 2478: 2468: 2455: 2442: 2429: 2422: 2416: 2415: 2383: 2370: 2348: 2335: 2322: 2309: 2287: 2277: 2267: 2266: 2262: 2225: 2202: 2172: 2146: 2145: 2050: 2040: 2030: 2029: 2022: 1881: 1850: 1840: 1830: 1829: 1817: 1810: 1783: 1770: 1757: 1744: 1722: 1700: 1680: 1679: 1670: 1664: 1660: 1643: 1642: 1623: 1601: 1591: 1572: 1562: 1540: 1537: 1536: 1517: 1495: 1485: 1466: 1456: 1434: 1427: 1406: 1405: 1360: 1359: 1355: 1346: 1340: 1299: 1288: 1267: 1263: 1249: 1248: 1241: 1240: 1233: 1226: 1220: 1211: 1203: 1198:It is called a 1181: 1132: 1131: 1120: 1117:Planck constant 1115:is the reduced 1112: 1040: 1036: 1013: 1012: 1000: 990: 980: 979: 968: 954: 937: 903:delta potential 891: 862: 861: 860: 625: 617: 616: 562: 561:Advanced topics 554: 553: 552: 504:Hidden-variable 494:de Broglie–Bohm 473: 471:Interpretations 463: 462: 461: 431: 423: 422: 421: 379: 371: 370: 369: 336: 292:CHSH inequality 281: 273: 272: 271: 200:Complementarity 194: 186: 185: 184: 152: 123: 62: 46: 45: 28: 23: 22: 15: 12: 11: 5: 5720: 5718: 5710: 5709: 5704: 5699: 5694: 5692:Quantum models 5689: 5679: 5678: 5675: 5674: 5660: 5659:External links 5657: 5656: 5655: 5648: 5642: 5627: 5626: 5583: 5579:J. Chem. Phys. 5562: 5544: 5492: 5467: 5465: 5462: 5461: 5460: 5455: 5450: 5445: 5440: 5435: 5430: 5421: 5416: 5411: 5406: 5401: 5396: 5389: 5386: 5362: 5359: 5354: 5350: 5329:function (see 5323:generalization 5304: 5300: 5267: 5264: 5260: 5256: 5251: 5248: 5245: 5241: 5237: 5234: 5231: 5228: 5225: 5222: 5219: 5216: 5211: 5207: 5183: 5178: 5122: 5118: 5112: 5107: 5103: 5099: 5095: 5091: 5088: 5084: 5080: 5077: 5072: 5068: 5038: 5034: 5030: 5027: 5007: 5002: 4998: 4994: 4989: 4984: 4978: 4975: 4972: 4969: 4964: 4960: 4956: 4953: 4949: 4945: 4942: 4938: 4932: 4928: 4924: 4921: 4918: 4913: 4909: 4905: 4902: 4899: 4896: 4891: 4887: 4882: 4875: 4872: 4867: 4864: 4861: 4858: 4855: 4852: 4849: 4844: 4841: 4836: 4833: 4830: 4827: 4822: 4818: 4793: 4773: 4768: 4763: 4759: 4753: 4750: 4747: 4738: 4735: 4732: 4727: 4721: 4718: 4715: 4712: 4709: 4705: 4702: 4699: 4695: 4691: 4688: 4685: 4684: 4679: 4676: 4673: 4669: 4665: 4662: 4660: 4657: 4654: 4651: 4650: 4648: 4626: 4620: 4614: 4611: 4606: 4603: 4599: 4595: 4592: 4588: 4584: 4581: 4575: 4569: 4566: 4561: 4558: 4554: 4550: 4547: 4543: 4539: 4536: 4533: 4530: 4527: 4524: 4500: 4497: 4494: 4491: 4488: 4468: 4465: 4462: 4459: 4456: 4421: 4418: 4415: 4412: 4409: 4389: 4385: 4380: 4374: 4371: 4366: 4363: 4359: 4355: 4352: 4349: 4345: 4339: 4336: 4331: 4328: 4324: 4320: 4316: 4312: 4309: 4306: 4303: 4300: 4297: 4294: 4274: 4271: 4268: 4265: 4262: 4259: 4256: 4253: 4250: 4247: 4244: 4241: 4238: 4235: 4232: 4229: 4221: 4217: 4213: 4208: 4205: 4202: 4199: 4194: 4190: 4180: 4177: 4171: 4167: 4161: 4135: 4132: 4083: 4080: 4077: 4074: 4071: 4068: 4065: 4062: 4059: 4056: 4053: 4050: 4047: 4044: 4041: 4038: 4035: 4032: 4029: 4000:effective mass 3988: 3985: 3973: 3960: 3955: 3951: 3947: 3933: 3929: 3925: 3914: 3911: 3899: 3888: 3873: 3869: 3863: 3859: 3844: 3840: 3834: 3830: 3818: 3815: 3803: 3792: 3789: 3786: 3783: 3780: 3775: 3770: 3765: 3761: 3757: 3754: 3715: 3711: 3707: 3695: 3690: 3686: 3682: 3671: 3668: 3656: 3645: 3630: 3626: 3620: 3616: 3601: 3597: 3591: 3587: 3575: 3572: 3560: 3549: 3544: 3539: 3534: 3530: 3526: 3523: 3497: 3489: 3486: 3478: 3475: 3463: 3458: 3454: 3450: 3430: 3419: 3416: 3412: 3399: 3394: 3390: 3386: 3374: 3371: 3360: 3357: 3345: 3334: 3331: 3302: 3292: 3287:(reflection), 3279: 3269: 3259: 3248: 3237: 3194: 3190: 3186: 3179: 3175: 3171: 3144:Transmission ( 3137: 3130: 3118: 3110: 3106: 3102: 3095: 3091: 3087: 3081: 3078: 3072: 3069: 3062: 3058: 3052: 3048: 3041: 3038: 3035: 3002: 2997: 2990: 2986: 2981: 2978: 2972: 2969: 2966: 2963: 2962: 2959: 2954: 2949: 2940: 2936: 2927: 2923: 2922: 2920: 2894: 2889: 2886: 2883: 2878: if  2875: 2873: 2868: 2865: 2862: 2858: 2848: 2844: 2841: 2838: 2835: 2826: 2822: 2821: 2818: 2815: 2812: 2809: 2804: if  2801: 2799: 2794: 2791: 2787: 2777: 2773: 2770: 2767: 2764: 2755: 2751: 2750: 2748: 2743: 2740: 2737: 2734: 2731: 2717: 2710: 2640: 2633: 2619: 2614: 2611: 2606: 2602: 2598: 2593: 2589: 2585: 2577: 2573: 2569: 2566: 2561: 2558: 2555: 2549: 2546: 2542: 2538: 2534: 2529: 2525: 2521: 2516: 2512: 2508: 2503: 2499: 2495: 2492: 2491: 2488: 2485: 2482: 2479: 2475: 2471: 2467: 2462: 2458: 2454: 2449: 2445: 2441: 2436: 2432: 2428: 2427: 2425: 2401: 2398: 2395: 2390: 2386: 2382: 2377: 2373: 2369: 2366: 2363: 2360: 2355: 2351: 2347: 2342: 2338: 2334: 2329: 2325: 2321: 2316: 2312: 2308: 2305: 2302: 2299: 2293: 2290: 2284: 2280: 2274: 2250: 2247: 2244: 2241: 2238: 2235: 2231: 2228: 2224: 2221: 2218: 2215: 2212: 2208: 2205: 2201: 2198: 2195: 2192: 2188: 2185: 2182: 2178: 2175: 2169: 2166: 2161: 2158: 2154: 2133: 2130: 2127: 2124: 2121: 2118: 2115: 2112: 2109: 2106: 2103: 2099: 2095: 2091: 2087: 2084: 2081: 2078: 2074: 2070: 2066: 2062: 2056: 2053: 2047: 2043: 2037: 2008: 2005: 2002: 1998: 1995: 1992: 1989: 1984: 1981: 1976: 1973: 1969: 1965: 1962: 1959: 1956: 1952: 1949: 1946: 1943: 1940: 1937: 1934: 1931: 1926: 1923: 1918: 1915: 1911: 1907: 1904: 1901: 1897: 1894: 1891: 1887: 1884: 1878: 1875: 1870: 1867: 1863: 1856: 1853: 1847: 1843: 1837: 1795: 1790: 1786: 1782: 1777: 1773: 1769: 1764: 1760: 1756: 1751: 1747: 1743: 1740: 1737: 1734: 1729: 1725: 1721: 1718: 1715: 1712: 1707: 1703: 1699: 1696: 1693: 1690: 1687: 1646: 1641: 1638: 1635: 1632: 1627: if  1624: 1622: 1617: 1614: 1611: 1608: 1604: 1594: 1590: 1585: 1582: 1579: 1575: 1565: 1561: 1558: 1555: 1552: 1543: 1539: 1538: 1535: 1532: 1529: 1526: 1521: if  1518: 1516: 1511: 1508: 1505: 1502: 1498: 1488: 1484: 1479: 1476: 1473: 1469: 1459: 1455: 1452: 1449: 1446: 1437: 1433: 1432: 1430: 1425: 1422: 1419: 1416: 1413: 1391: 1386: 1382: 1379: 1376: 1370: 1367: 1316: 1313: 1306: 1302: 1297: 1294: 1291: 1285: 1282: 1274: 1270: 1266: 1261: 1256: 1252: 1219: 1216: 1169: 1166: 1163: 1160: 1157: 1154: 1151: 1148: 1145: 1142: 1139: 1100: 1097: 1094: 1091: 1088: 1085: 1082: 1079: 1076: 1073: 1070: 1067: 1064: 1061: 1058: 1055: 1047: 1043: 1039: 1034: 1031: 1028: 1025: 1020: 1016: 1006: 1003: 997: 993: 987: 936: 933: 907:potential well 893: 892: 890: 889: 882: 875: 867: 864: 863: 859: 858: 853: 848: 843: 838: 833: 828: 823: 818: 813: 808: 803: 798: 793: 788: 783: 778: 773: 768: 763: 758: 753: 748: 743: 738: 733: 728: 723: 718: 713: 708: 703: 698: 693: 688: 683: 678: 673: 668: 663: 658: 653: 648: 643: 638: 633: 627: 626: 623: 622: 619: 618: 615: 614: 609: 604: 599: 597:Density matrix 594: 589: 584: 579: 574: 569: 563: 560: 559: 556: 555: 551: 550: 545: 540: 535: 530: 525: 520: 519: 518: 517: 516: 501: 496: 491: 486: 481: 475: 474: 469: 468: 465: 464: 460: 459: 454: 449: 444: 439: 433: 432: 429: 428: 425: 424: 420: 419: 414: 409: 404: 399: 394: 388: 387: 386: 380: 377: 376: 373: 372: 368: 367: 362: 357: 351: 350: 349: 348: 347: 345:Delayed-choice 340:Quantum eraser 335: 334: 329: 324: 319: 314: 309: 304: 299: 294: 289: 283: 282: 279: 278: 275: 274: 270: 269: 268: 267: 257: 252: 247: 242: 237: 232: 230:Quantum number 227: 222: 217: 212: 207: 202: 196: 195: 192: 191: 188: 187: 183: 182: 177: 171: 170: 169: 164: 159: 153: 150: 149: 146: 145: 144: 143: 138: 133: 125: 124: 119: 108: 105: 101: 94: 91: 85: 82: 79: 75: 68: 65: 61: 56: 53: 42: 41: 35: 34: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 5719: 5708: 5705: 5703: 5700: 5698: 5695: 5693: 5690: 5688: 5685: 5684: 5682: 5672: 5667: 5663: 5662: 5658: 5653: 5649: 5645: 5639: 5635: 5630: 5629: 5622: 5618: 5614: 5610: 5606: 5602: 5598: 5594: 5587: 5584: 5580: 5576: 5572: 5566: 5563: 5560: 5557: 5553: 5548: 5545: 5541: 5537: 5533: 5529: 5525: 5521: 5516: 5511: 5507: 5503: 5496: 5493: 5482: 5478: 5472: 5469: 5463: 5459: 5456: 5454: 5451: 5449: 5446: 5444: 5441: 5439: 5436: 5434: 5431: 5429: 5425: 5424:Hydrogen atom 5422: 5420: 5417: 5415: 5412: 5410: 5407: 5405: 5402: 5400: 5397: 5395: 5394:Free particle 5392: 5391: 5387: 5385: 5383: 5377: 5360: 5357: 5352: 5348: 5339: 5334: 5332: 5328: 5324: 5320: 5302: 5298: 5289: 5287: 5281: 5265: 5262: 5258: 5249: 5246: 5243: 5239: 5235: 5232: 5229: 5223: 5220: 5217: 5214: 5209: 5205: 5181: 5176: 5162: 5157: 5153: 5148: 5147: 5141: 5137: 5120: 5116: 5110: 5105: 5101: 5097: 5093: 5089: 5086: 5082: 5078: 5075: 5070: 5066: 5055: 5036: 5032: 5028: 5025: 5005: 5000: 4996: 4992: 4987: 4982: 4976: 4970: 4962: 4958: 4954: 4951: 4947: 4943: 4940: 4936: 4930: 4926: 4922: 4919: 4916: 4911: 4903: 4900: 4897: 4889: 4885: 4880: 4873: 4870: 4865: 4859: 4856: 4853: 4847: 4842: 4839: 4834: 4828: 4820: 4816: 4807: 4791: 4771: 4766: 4761: 4757: 4751: 4748: 4745: 4736: 4733: 4730: 4725: 4719: 4716: 4713: 4710: 4703: 4700: 4697: 4693: 4689: 4686: 4677: 4674: 4671: 4667: 4663: 4658: 4655: 4652: 4646: 4624: 4618: 4612: 4609: 4604: 4601: 4597: 4593: 4590: 4586: 4582: 4579: 4573: 4567: 4564: 4559: 4556: 4552: 4548: 4545: 4541: 4537: 4534: 4528: 4522: 4514: 4498: 4495: 4492: 4489: 4486: 4466: 4463: 4460: 4457: 4446: 4440: 4436: 4416: 4413: 4410: 4407: 4387: 4383: 4378: 4372: 4369: 4364: 4361: 4357: 4353: 4350: 4347: 4343: 4337: 4334: 4329: 4326: 4322: 4318: 4314: 4310: 4307: 4304: 4298: 4292: 4272: 4266: 4260: 4257: 4254: 4248: 4242: 4236: 4230: 4227: 4219: 4215: 4211: 4203: 4197: 4192: 4188: 4178: 4175: 4169: 4159: 4146: 4140: 4133: 4131: 4129: 4125: 4121: 4117: 4113: 4112:Hydrogen atom 4108: 4106: 4102: 4097: 4078: 4075: 4072: 4066: 4060: 4054: 4051: 4045: 4042: 4039: 4036: 4033: 4017: 4015: 4011: 4006: 4001: 3997: 3992: 3986: 3984: 3971: 3958: 3953: 3945: 3931: 3927: 3923: 3912: 3909: 3897: 3886: 3871: 3867: 3861: 3842: 3838: 3832: 3828: 3816: 3813: 3801: 3790: 3787: 3784: 3781: 3778: 3773: 3763: 3755: 3752: 3743: 3713: 3709: 3705: 3693: 3688: 3680: 3669: 3666: 3654: 3643: 3628: 3624: 3618: 3614: 3599: 3595: 3589: 3573: 3570: 3558: 3547: 3542: 3532: 3524: 3521: 3513: 3508: 3495: 3487: 3484: 3476: 3473: 3461: 3456: 3448: 3428: 3417: 3414: 3410: 3397: 3392: 3384: 3372: 3369: 3358: 3355: 3343: 3332: 3329: 3308: 3301: 3291: 3285: 3278: 3268: 3258: 3247: 3236: 3229: 3225: 3218: 3192: 3184: 3177: 3173: 3169: 3156: 3151: 3147: 3142: 3135: 3131: 3129: 3116: 3108: 3100: 3093: 3089: 3085: 3079: 3076: 3070: 3067: 3060: 3056: 3050: 3039: 3036: 3033: 3024: 3022: 2995: 2988: 2979: 2976: 2970: 2967: 2964: 2957: 2952: 2947: 2938: 2934: 2925: 2918: 2907: 2887: 2884: 2881: 2871: 2866: 2863: 2860: 2856: 2846: 2842: 2836: 2824: 2816: 2813: 2810: 2807: 2797: 2792: 2789: 2785: 2775: 2771: 2765: 2753: 2746: 2741: 2735: 2729: 2716: 2709: 2704: 2699: 2695: 2688: 2684: 2677: 2673: 2666: 2661: 2651: 2645: 2638: 2635:Bound state ( 2634: 2632: 2612: 2604: 2600: 2596: 2591: 2587: 2575: 2567: 2564: 2559: 2556: 2553: 2547: 2540: 2536: 2532: 2527: 2523: 2519: 2514: 2510: 2506: 2501: 2497: 2493: 2486: 2483: 2480: 2473: 2469: 2465: 2460: 2456: 2452: 2447: 2443: 2439: 2434: 2430: 2423: 2412: 2399: 2396: 2388: 2384: 2380: 2375: 2371: 2364: 2361: 2353: 2349: 2345: 2340: 2336: 2332: 2327: 2323: 2319: 2314: 2310: 2306: 2300: 2297: 2291: 2288: 2282: 2272: 2248: 2239: 2236: 2229: 2226: 2222: 2216: 2213: 2206: 2203: 2196: 2193: 2190: 2183: 2176: 2173: 2167: 2164: 2159: 2156: 2152: 2131: 2125: 2119: 2116: 2113: 2104: 2097: 2093: 2089: 2085: 2079: 2072: 2068: 2064: 2054: 2051: 2045: 2035: 2025: 2019: 2006: 2003: 2000: 1993: 1987: 1982: 1979: 1974: 1971: 1967: 1963: 1960: 1957: 1954: 1947: 1941: 1935: 1929: 1924: 1921: 1916: 1913: 1909: 1905: 1902: 1899: 1892: 1885: 1882: 1876: 1873: 1868: 1865: 1861: 1854: 1851: 1845: 1835: 1825: 1821: 1813: 1806: 1793: 1788: 1784: 1780: 1775: 1771: 1767: 1762: 1758: 1754: 1749: 1745: 1741: 1735: 1727: 1723: 1719: 1713: 1705: 1701: 1697: 1691: 1685: 1676: 1673: 1667: 1639: 1636: 1633: 1630: 1620: 1615: 1612: 1609: 1606: 1602: 1592: 1588: 1583: 1580: 1577: 1573: 1563: 1559: 1553: 1541: 1533: 1530: 1527: 1524: 1514: 1509: 1506: 1503: 1500: 1496: 1486: 1482: 1477: 1474: 1471: 1467: 1457: 1453: 1447: 1435: 1428: 1423: 1417: 1411: 1402: 1389: 1380: 1377: 1374: 1368: 1365: 1354: 1349: 1343: 1338: 1334: 1330: 1314: 1311: 1304: 1295: 1292: 1289: 1283: 1280: 1272: 1268: 1264: 1259: 1254: 1250: 1236: 1229: 1223: 1217: 1215: 1209: 1201: 1196: 1194: 1188: 1184: 1167: 1161: 1155: 1152: 1149: 1143: 1137: 1128: 1126: 1118: 1098: 1092: 1086: 1083: 1080: 1074: 1068: 1062: 1056: 1053: 1045: 1041: 1037: 1029: 1023: 1018: 1014: 1004: 1001: 995: 985: 975: 971: 967: 961: 957: 953: 952:wave function 949: 941: 934: 932: 929: 927: 923: 922:limiting case 918: 916: 912: 908: 904: 900: 888: 883: 881: 876: 874: 869: 868: 866: 865: 857: 854: 852: 849: 847: 844: 842: 839: 837: 834: 832: 829: 827: 824: 822: 819: 817: 814: 812: 809: 807: 804: 802: 799: 797: 794: 792: 789: 787: 784: 782: 779: 777: 774: 772: 769: 767: 764: 762: 759: 757: 754: 752: 749: 747: 744: 742: 739: 737: 734: 732: 729: 727: 724: 722: 719: 717: 714: 712: 709: 707: 704: 702: 699: 697: 694: 692: 689: 687: 684: 682: 679: 677: 674: 672: 669: 667: 664: 662: 659: 657: 654: 652: 649: 647: 644: 642: 639: 637: 634: 632: 629: 628: 621: 620: 613: 610: 608: 605: 603: 600: 598: 595: 593: 590: 588: 587:Quantum chaos 585: 583: 580: 578: 575: 573: 570: 568: 565: 564: 558: 557: 549: 546: 544: 543:Transactional 541: 539: 536: 534: 533:Quantum logic 531: 529: 526: 524: 521: 515: 512: 511: 510: 507: 506: 505: 502: 500: 497: 495: 492: 490: 487: 485: 482: 480: 477: 476: 472: 467: 466: 458: 455: 453: 450: 448: 445: 443: 440: 438: 435: 434: 427: 426: 418: 415: 413: 410: 408: 405: 403: 400: 398: 395: 393: 390: 389: 385: 382: 381: 375: 374: 366: 363: 361: 358: 356: 353: 352: 346: 343: 342: 341: 338: 337: 333: 330: 328: 325: 323: 320: 318: 315: 313: 310: 308: 305: 303: 300: 298: 295: 293: 290: 288: 285: 284: 277: 276: 266: 263: 262: 261: 260:Wave function 258: 256: 253: 251: 248: 246: 243: 241: 240:Superposition 238: 236: 233: 231: 228: 226: 223: 221: 218: 216: 213: 211: 208: 206: 203: 201: 198: 197: 190: 189: 181: 178: 176: 173: 172: 168: 165: 163: 160: 158: 155: 154: 148: 147: 142: 139: 137: 134: 132: 129: 128: 127: 126: 122: 89: 83: 66: 63: 59: 51: 44: 43: 40: 36: 32: 31: 19: 5651: 5633: 5596: 5592: 5586: 5565: 5555: 5547: 5508:(11): 1–49, 5505: 5501: 5495: 5484:. Retrieved 5480: 5471: 5375: 5337: 5335: 5326: 5322: 5318: 5285: 5279: 5160: 5155: 5151: 5144: 5139: 5135: 5053: 4805: 4445:atomic units 4438: 4434: 4151: 4144: 4123: 4115: 4109: 4100: 4098: 4018: 4007: 3993: 3990: 3744: 3509: 3306: 3299: 3289: 3283: 3276: 3266: 3256: 3245: 3234: 3230: 3223: 3216: 3213: 3154: 3149: 3145: 3133: 3132:Scattering ( 3025: 2908: 2714: 2707: 2702: 2697: 2693: 2686: 2682: 2675: 2671: 2664: 2657: 2649: 2636: 2413: 2023: 2020: 1823: 1819: 1811: 1807: 1677: 1671: 1665: 1403: 1351:, where the 1347: 1341: 1234: 1227: 1224: 1221: 1207: 1199: 1197: 1186: 1182: 1129: 973: 969: 959: 955: 945: 930: 919: 902: 896: 442:Klein–Gordon 378:Formulations 215:Energy level 210:Entanglement 193:Fundamentals 180:Interference 131:Introduction 5571:A. Dalgarno 4742:where  4124:double-well 2660:bound state 1353:wave number 831:von Neumann 816:Schrödinger 592:EPR paradox 523:Many-worlds 457:Schrödinger 412:Schrödinger 407:Phase-space 397:Interaction 302:Double-slit 280:Experiments 255:Uncertainty 225:Nonlocality 220:Measurement 205:Decoherence 175:Hamiltonian 5681:Categories 5486:2021-03-29 5464:References 3996:conducting 2144:because 1327:this is a 826:Sommerfeld 741:Heisenberg 736:Gutzwiller 676:de Broglie 624:Scientists 538:Relational 489:Copenhagen 392:Heisenberg 250:Tunnelling 151:Background 5621:0002-9505 5515:1302.0864 5353:− 5244:− 5230:± 5210:± 5106:± 5098:− 5090:± 5071:± 5037:± 4971:λ 4963:± 4952:− 4944:− 4923:λ 4917:− 4904:λ 4866:± 4854:λ 4829:λ 4821:± 4808:equation 4752:− 4717:− 4714:λ 4698:− 4690:λ 4672:− 4656:− 4605:− 4591:− 4546:− 4523:ψ 4493:λ 4455:ℏ 4420:∞ 4365:− 4354:δ 4351:λ 4319:δ 4308:− 4261:ψ 4243:ψ 4198:ψ 4166:ℏ 4160:− 4067:ϕ 4055:ψ 4028:Ψ 3950:ℏ 3928:λ 3858:ℏ 3839:λ 3785:− 3710:λ 3685:ℏ 3625:λ 3586:ℏ 3485:− 3477:λ 3453:ℏ 3389:ℏ 3373:λ 3359:− 3189:ℏ 3174:λ 3105:ℏ 3090:λ 3080:− 3057:κ 3047:ℏ 3040:− 2985:ℏ 2980:λ 2971:− 2965:κ 2953:κ 2885:≥ 2864:κ 2861:− 2825:ψ 2811:≤ 2790:κ 2754:ψ 2730:ψ 2572:ℏ 2560:λ 2533:− 2494:− 2466:− 2453:− 2365:λ 2346:− 2307:− 2279:ℏ 2273:− 2240:ε 2237:− 2227:ψ 2223:− 2217:ε 2204:ψ 2174:ψ 2168:ε 2160:ε 2157:− 2153:∫ 2120:ψ 2117:λ 2090:ψ 2086:− 2065:ψ 2042:ℏ 2036:− 1988:ψ 1983:ε 1975:ε 1972:− 1968:∫ 1942:ψ 1925:ε 1917:ε 1914:− 1910:∫ 1883:ψ 1877:ε 1869:ε 1866:− 1862:∫ 1842:ℏ 1836:− 1724:ψ 1702:ψ 1686:ψ 1607:− 1542:ψ 1501:− 1436:ψ 1412:ψ 1385:ℏ 1312:ψ 1301:ℏ 1284:− 1260:ψ 1156:δ 1153:λ 1087:ψ 1069:ψ 1024:ψ 992:ℏ 986:− 966:potential 856:Zeilinger 701:Ehrenfest 430:Equations 107:⟩ 104:Ψ 93:^ 81:⟩ 78:Ψ 55:ℏ 5540:56188533 5388:See also 5288:function 5284:Lambert 5161:ungerade 4447:and set 3512:symmetry 2230:′ 2207:′ 2177:″ 2098:′ 2073:′ 1886:″ 1222:Source: 950:for the 781:Millikan 706:Einstein 691:Davisson 646:Blackett 631:Aharonov 499:Ensemble 479:Bayesian 384:Overview 265:Collapse 245:Symmetry 136:Glossary 5601:Bibcode 5520:Bibcode 5319:unequal 4479:. Here 3136:> 0) 2679:√ 2639:< 0) 1191:is the 1123:is the 924:of the 821:Simmons 811:Rydberg 776:Moseley 756:Kramers 746:Hilbert 731:Glauber 726:Feynman 711:Everett 681:Compton 452:Rydberg 141:History 5640:  5619:  5538:  5278:where 5146:gerade 4784:Thus, 4513:ansatz 4400:where 3226:> 0 3219:< 0 3157:> 0 2667:< 0 1818:[− 1237:> 0 1230:< 0 1180:where 1125:energy 1119:, and 1111:where 851:Zeeman 846:Wigner 796:Planck 766:Landau 751:Jordan 402:Matrix 332:Popper 5536:S2CID 5510:arXiv 4103:(see 1826:] 1331:with 905:is a 806:Raman 791:Pauli 786:Onnes 721:Fermi 696:Debye 686:Dirac 651:Bloch 641:Bethe 509:Local 447:Pauli 437:Dirac 235:State 5638:ISBN 5617:ISSN 5506:2012 4496:< 4490:< 4417:< 4411:< 3314:and 1634:> 1528:< 1345:and 1232:and 1195:. 913:- a 901:the 841:Wien 836:Weyl 801:Rabi 771:Laue 761:Lamb 716:Fock 671:Bose 666:Born 661:Bohr 656:Bohm 636:Bell 5609:doi 5528:doi 5426:or 5378:= 0 5333:). 5154:= − 5056:= 1 4437:= ± 4147:= 2 4107:). 4096:. 3295:= 0 3272:= 1 3221:or 2720:= 0 2652:= 0 2026:→ 0 1822:, + 1814:= 0 1663:), 1339:of 1210:if 1202:if 978:is 897:In 5683:: 5615:. 5607:. 5597:60 5595:. 5577:, 5534:, 5526:, 5518:, 5504:, 5479:. 5338:qR 5138:= 4441:/2 3305:= 3282:= 3023:. 2888:0. 2713:= 2698:iÎș 2696:= 2674:= 2669:, 2400:0. 1828:: 5646:. 5623:. 5611:: 5603:: 5530:: 5522:: 5512:: 5489:. 5376:E 5361:0 5358:= 5349:d 5327:W 5303:+ 5299:d 5286:W 5280:W 5266:, 5263:R 5259:/ 5255:) 5250:R 5247:q 5240:e 5236:R 5233:q 5227:( 5224:W 5221:+ 5218:q 5215:= 5206:d 5182:+ 5177:2 5173:H 5156:B 5152:A 5140:B 5136:A 5121:. 5117:] 5111:R 5102:d 5094:e 5087:1 5083:[ 5079:q 5076:= 5067:d 5054:λ 5033:d 5029:= 5026:d 5006:, 5001:2 4997:/ 4993:1 4988:} 4983:] 4977:R 4974:) 4968:( 4959:d 4955:2 4948:e 4941:1 4937:[ 4931:2 4927:q 4920:4 4912:2 4908:) 4901:+ 4898:1 4895:( 4890:2 4886:q 4881:{ 4874:2 4871:1 4863:) 4860:1 4857:+ 4851:( 4848:q 4843:2 4840:1 4835:= 4832:) 4826:( 4817:d 4792:d 4772:. 4767:2 4762:2 4758:d 4749:= 4746:E 4737:, 4734:0 4731:= 4726:| 4720:d 4711:q 4704:R 4701:d 4694:e 4687:q 4678:R 4675:d 4668:e 4664:q 4659:d 4653:q 4647:| 4625:. 4619:| 4613:2 4610:R 4602:x 4598:| 4594:d 4587:e 4583:B 4580:+ 4574:| 4568:2 4565:R 4560:+ 4557:x 4553:| 4549:d 4542:e 4538:A 4535:= 4532:) 4529:x 4526:( 4499:1 4487:0 4467:1 4464:= 4461:m 4458:= 4439:R 4435:x 4414:R 4408:0 4388:, 4384:] 4379:) 4373:2 4370:R 4362:x 4358:( 4348:+ 4344:) 4338:2 4335:R 4330:+ 4327:x 4323:( 4315:[ 4311:q 4305:= 4302:) 4299:x 4296:( 4293:V 4273:, 4270:) 4267:x 4264:( 4258:E 4255:= 4252:) 4249:x 4246:( 4240:) 4237:x 4234:( 4231:V 4228:+ 4220:2 4216:x 4212:d 4207:) 4204:x 4201:( 4193:2 4189:d 4179:m 4176:2 4170:2 4145:R 4101:D 4082:) 4079:z 4076:, 4073:y 4070:( 4064:) 4061:x 4058:( 4052:= 4049:) 4046:z 4043:, 4040:y 4037:, 4034:x 4031:( 4003:m 3972:. 3959:E 3954:2 3946:2 3932:2 3924:m 3913:+ 3910:1 3898:1 3887:= 3872:2 3868:k 3862:4 3843:2 3833:2 3829:m 3817:+ 3814:1 3802:1 3791:= 3788:R 3782:1 3779:= 3774:2 3769:| 3764:t 3760:| 3756:= 3753:T 3740:λ 3714:2 3706:m 3694:E 3689:2 3681:2 3670:+ 3667:1 3655:1 3644:= 3629:2 3619:2 3615:m 3600:2 3596:k 3590:4 3574:+ 3571:1 3559:1 3548:= 3543:2 3538:| 3533:r 3529:| 3525:= 3522:R 3496:. 3488:1 3474:m 3462:k 3457:2 3449:i 3429:1 3418:= 3415:r 3411:, 3398:k 3393:2 3385:i 3370:m 3356:1 3344:1 3333:= 3330:t 3320:t 3316:t 3312:r 3307:t 3303:r 3300:B 3293:l 3290:B 3284:r 3280:l 3277:A 3270:r 3267:A 3262:) 3260:r 3257:B 3255:( 3251:) 3249:l 3246:A 3244:( 3240:) 3238:r 3235:A 3233:( 3224:x 3217:x 3193:2 3185:2 3178:2 3170:m 3155:E 3150:R 3146:T 3134:E 3117:. 3109:2 3101:2 3094:2 3086:m 3077:= 3071:m 3068:2 3061:2 3051:2 3037:= 3034:E 3017:λ 2996:, 2989:2 2977:m 2968:= 2958:, 2948:= 2943:r 2939:B 2935:= 2930:l 2926:A 2919:{ 2882:x 2872:, 2867:x 2857:e 2851:r 2847:B 2843:= 2840:) 2837:x 2834:( 2829:R 2817:, 2814:0 2808:x 2798:, 2793:x 2786:e 2780:l 2776:A 2772:= 2769:) 2766:x 2763:( 2758:L 2747:{ 2742:= 2739:) 2736:x 2733:( 2718:l 2715:B 2711:r 2708:A 2703:x 2694:ħ 2692:/ 2689:| 2687:E 2685:| 2683:m 2681:2 2676:i 2672:k 2665:E 2654:. 2650:x 2637:E 2613:. 2610:) 2605:l 2601:A 2597:+ 2592:r 2588:A 2584:( 2576:2 2568:k 2565:i 2557:m 2554:2 2548:= 2541:l 2537:B 2528:r 2524:B 2520:+ 2515:l 2511:A 2507:+ 2502:r 2498:A 2487:, 2484:0 2481:= 2474:l 2470:B 2461:r 2457:B 2448:l 2444:A 2440:+ 2435:r 2431:A 2424:{ 2397:= 2394:) 2389:l 2385:A 2381:+ 2376:r 2372:A 2368:( 2362:+ 2359:) 2354:l 2350:B 2341:r 2337:B 2333:+ 2328:l 2324:A 2320:+ 2315:r 2311:A 2304:( 2301:k 2298:i 2292:m 2289:2 2283:2 2263:ψ 2249:. 2246:] 2243:) 2234:( 2220:) 2214:+ 2211:( 2200:[ 2197:= 2194:x 2191:d 2187:) 2184:x 2181:( 2165:+ 2132:, 2129:) 2126:0 2123:( 2114:+ 2111:] 2108:) 2105:0 2102:( 2094:L 2083:) 2080:0 2077:( 2069:R 2061:[ 2055:m 2052:2 2046:2 2024:Δ 2007:. 2004:x 2001:d 1997:) 1994:x 1991:( 1980:+ 1964:E 1961:= 1958:x 1955:d 1951:) 1948:x 1945:( 1939:) 1936:x 1933:( 1930:V 1922:+ 1906:+ 1903:x 1900:d 1896:) 1893:x 1890:( 1874:+ 1855:m 1852:2 1846:2 1824:Δ 1820:Δ 1812:x 1794:, 1789:l 1785:B 1781:+ 1776:r 1772:B 1768:= 1763:l 1759:A 1755:+ 1750:r 1746:A 1742:= 1739:) 1736:0 1733:( 1728:R 1720:= 1717:) 1714:0 1711:( 1706:L 1698:= 1695:) 1692:0 1689:( 1672:e 1666:e 1661:k 1640:, 1637:0 1631:x 1621:, 1616:x 1613:k 1610:i 1603:e 1597:l 1593:B 1589:+ 1584:x 1581:k 1578:i 1574:e 1568:r 1564:B 1560:= 1557:) 1554:x 1551:( 1546:R 1534:, 1531:0 1525:x 1515:, 1510:x 1507:k 1504:i 1497:e 1491:l 1487:A 1483:+ 1478:x 1475:k 1472:i 1468:e 1462:r 1458:A 1454:= 1451:) 1448:x 1445:( 1440:L 1429:{ 1424:= 1421:) 1418:x 1415:( 1390:. 1381:E 1378:m 1375:2 1369:= 1366:k 1356:k 1348:e 1342:e 1315:; 1305:2 1296:E 1293:m 1290:2 1281:= 1273:2 1269:x 1265:d 1255:2 1251:d 1235:x 1228:x 1212:λ 1204:λ 1189:) 1187:x 1185:( 1183:ÎŽ 1168:, 1165:) 1162:x 1159:( 1150:= 1147:) 1144:x 1141:( 1138:V 1121:E 1113:ħ 1099:, 1096:) 1093:x 1090:( 1084:E 1081:= 1078:) 1075:x 1072:( 1066:) 1063:x 1060:( 1057:V 1054:+ 1046:2 1042:x 1038:d 1033:) 1030:x 1027:( 1019:2 1015:d 1005:m 1002:2 996:2 976:) 974:x 972:( 970:V 962:) 960:x 958:( 956:ψ 886:e 879:t 872:v 100:| 90:H 84:= 74:| 67:t 64:d 60:d 52:i 20:)

Index

Delta function potential
Quantum mechanics
Schrödinger equation
Introduction
Glossary
History
Classical mechanics
Old quantum theory
Bra–ket notation
Hamiltonian
Interference
Complementarity
Decoherence
Entanglement
Energy level
Measurement
Nonlocality
Quantum number
State
Superposition
Symmetry
Tunnelling
Uncertainty
Wave function
Collapse
Bell's inequality
CHSH inequality
Davisson–Germer
Double-slit
Elitzur–Vaidman

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