Nonlinear Quantum Cosmology
Abstract
We study the effects of an information-theoretically motivated nonlinear correction to the Wheeler-deWitt equation in the minisuperspace scheme for flat, , Friedmann-Robertson-Walker (FRW) 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 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.
Cite
@article{arxiv.0805.4294,
title = {Nonlinear Quantum Cosmology},
author = {Le-Huy Nguyen and Rajesh R. Parwani},
journal= {arXiv preprint arXiv:0805.4294},
year = {2014}
}
Comments
Final Journal version: Further clarification in Introduction and Conclusion. references added. figures same as in version 1