Nonlinear quantum cosmology
We study the effects of an information-theoretically motivated nonlinear correction to the Wheeler-deWitt equation in the minisuperspace scheme for flat, k = 0, Friedmann–Robertson–Walker universes. When the only matter is a cosmological constant, the nonlinearity can provide a barrier that screens...
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| Veröffentlicht in: | General relativity and gravitation 2009-11, Vol.41 (11), p.2543-2560 |
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| container_title | General relativity and gravitation |
| container_volume | 41 |
| creator | Nguyen, Le-Huy Parwani, Rajesh R. |
| description | We study the effects of an information-theoretically motivated nonlinear correction to the Wheeler-deWitt equation in the minisuperspace scheme for flat,
k
= 0, Friedmann–Robertson–Walker universes. When the only matter is a cosmological constant, the nonlinearity can provide a barrier that screens the original Big Bang, leading to the quantum creation of a universe through tunneling just as in the
k
= 1 case. When the matter is instead a free massless scalar field, the nonlinearity can again prevent a contracting classical universe from reaching zero size by creating a bounce. Our studies here are self-consistent to leading order in perturbation theory for the nonlinear effects. |
| doi_str_mv | 10.1007/s10714-009-0779-9 |
| format | Article |
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k
= 0, Friedmann–Robertson–Walker universes. When the only matter is a cosmological constant, the nonlinearity can provide a barrier that screens the original Big Bang, leading to the quantum creation of a universe through tunneling just as in the
k
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k
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k
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k
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k
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| subjects | Astronomy Astrophysics and Cosmology Classical and Quantum Gravitation Differential Geometry Mathematical and Computational Physics Physics Physics and Astronomy Quantum Physics Relativity Theory Research Article Theoretical |
| title | Nonlinear quantum cosmology |
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