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Virtual photon

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61:, which can be described as the orientation of the electric and magnetic fields that make up the photon. The polarization of a virtual photon is determined by the direction of its momentum and its interaction with the charges that emit or absorb it. The range of polarizations for virtual photons can be compared to the range of colors for visible light, with each polarization corresponding to a specific orientation of the electric and magnetic fields. 68:", which means that they do not obey the usual relationship between energy and momentum that applies to real particles. Real photons must always have energy equal to the speed of light times their momentum, but virtual photons can have any energy that is consistent with the uncertainty principle. This allows virtual photons to carry a wide range of energies, even if they are not physically real. 82:, which is the phenomenon of two uncharged metallic plates being attracted to each other due to the presence of virtual photons in the vacuum between them. The attractive force between the plates is caused by a difference in the density of virtual photons on either side of the plates, which creates a net force that pulls them together. 49:
If virtual photons exchanged between particles have a positive energy, they contribute to the electromagnetic force as a repulsive force. This means that the two charged particles are repelled from each other and the electromagnetic force pushes them apart. On the other hand, if the virtual photons
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It is important to note that positive and negative virtual photons are not separate particles, but rather a way of classifying the virtual photons that exist in the electromagnetic field. These classifications are based on the direction of the energy and momentum of the virtual photons and their
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Virtual photons are thought of as fluctuations in the electromagnetic field, characterized by their energy, momentum, and polarization. These fluctuations allow electrically charged particles to interact with each other by exchanging virtual photons. The electromagnetic force between two charged
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particles can be understood as the exchange of virtual photons between them. These photons are constantly being created and destroyed, and the exchange of these virtual photons creates the electromagnetic force that is responsible for interaction between charged particles.
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have a negative energy, they contribute to the electromagnetic force as an attractive force. This means that the two charged particles are attracted to each other and the electromagnetic force pulls them towards each other.
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Virtual photons can be classified into positive and negative virtual photons. These classifications are based on the direction of their energy and momentum and their contribution to the electromagnetic force.
34:" because they do not exist as free particles in the traditional sense but instead serve as intermediate particles in the exchange of force between other particles. They are responsible for the 118: 75:, which is a small shift in the energy levels of hydrogen atoms caused by the interaction of the atom with virtual photons in the vacuum. 162: 30:
that play a crucial role in describing the interactions between electrically charged particles. Virtual photons are referred to as "
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that holds matter together, making them a key component in our understanding of the physical world.
58: 158: 114: 189: 150: 106: 31: 23: 79: 178: 100: 110: 72: 144: 154: 102:Relativistic Quantum Mechanics. Wave Equations 8: 54:contribution to the electromagnetic force. 146:An Introduction To Quantum Field Theory 91: 7: 138: 136: 134: 132: 130: 71:Virtual photons are responsible for 57:Virtual photons can have a range of 78:They are also responsible for the 14: 143:Peskin, Michael E. (2018-05-04). 64:Virtual photons are said to be " 1: 22:are a fundamental concept in 206: 111:10.1007/978-3-662-04275-5 99:Greiner, Walter (2000). 155:10.1201/9780429503559 36:electromagnetic force 185:Quantum field theory 28:quantum field theory 16:Concept in physics 120:978-3-540-67457-3 197: 169: 168: 140: 125: 124: 96: 24:particle physics 205: 204: 200: 199: 198: 196: 195: 194: 175: 174: 173: 172: 165: 142: 141: 128: 121: 98: 97: 93: 88: 20:Virtual photons 17: 12: 11: 5: 203: 201: 193: 192: 187: 177: 176: 171: 170: 163: 126: 119: 90: 89: 87: 84: 80:Casimir effect 15: 13: 10: 9: 6: 4: 3: 2: 202: 191: 188: 186: 183: 182: 180: 166: 164:9780429972102 160: 156: 152: 148: 147: 139: 137: 135: 133: 131: 127: 122: 116: 112: 108: 104: 103: 95: 92: 85: 83: 81: 76: 74: 69: 67: 62: 60: 59:polarizations 55: 51: 47: 43: 39: 37: 33: 29: 25: 21: 145: 101: 94: 77: 70: 63: 56: 52: 48: 44: 40: 19: 18: 179:Categories 86:References 73:Lamb shift 66:off-shell 190:Photons 32:virtual 161:  117:  159:ISBN 115:ISBN 26:and 151:doi 107:doi 181:: 157:. 149:. 129:^ 113:. 105:. 167:. 153:: 123:. 109::

Index

particle physics
quantum field theory
virtual
electromagnetic force
polarizations
off-shell
Lamb shift
Casimir effect
Relativistic Quantum Mechanics. Wave Equations
doi
10.1007/978-3-662-04275-5
ISBN
978-3-540-67457-3





An Introduction To Quantum Field Theory
doi
10.1201/9780429503559
ISBN
9780429972102
Categories
Quantum field theory
Photons

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