From Big Crunch to Big Bang: A Quantum String Cosmology Perspective
General Relativity and Quantum Cosmology
2011-07-19 v2 Astrophysics
High Energy Physics - Theory
Abstract
The scenario that the Universe contracts towards a big crunch and then undergoes a transition to expanding Universe in envisaged in the quantum string cosmology approach. The Wheeler-De Witt equation is solved exactly for an exponential dilaton potential. S-duality invariant cosmological effective action, for type IIB theory, is considered to derive classical solutions and solve WDW equations.
Keywords
Cite
@article{arxiv.gr-qc/0110120,
title = {From Big Crunch to Big Bang: A Quantum String Cosmology Perspective},
author = {Jnanadeva Maharana},
journal= {arXiv preprint arXiv:gr-qc/0110120},
year = {2011}
}
Comments
5 pages, Revtex, references added, discussions elaborated. To appear in Physical Review D