From Big Crunch to Big Bang: A Quantum String Cosmology Perspective

Details From Big Crunch to Big Bang: A Quantum String Cosmology Perspective From Big Crunch to Big Bang: A Quantum String Cosmology Perspective

2001-10-29

arxiv.org/abs/gr-qc/0110120v2

Phys.Rev.D65:103504,2002

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5 pages, Revtex, references added, discussions elaborated. To appear in Physical Review D

Scientific paper

10.1103/PhysRevD.65.103504

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.

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