From Big Crunch to Big Bang: A Quantum String Cosmology Perspective
arXiv:gr-qc/0110120 · doi:10.1103/PhysRevD.65.103504
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.
5 pages, Revtex, references added, discussions elaborated. To appear in Physical Review D
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- Dilaton Cosmology, Noncommutativity and Generalized Uncertainty Principle
- Late time acceleration in a deformed phase space model of dilaton cosmology
- Deformation quantization of cosmological models
- On ekpyrotic brane collisions
- Late time acceleration in a non-commutative model of modified cosmology
- A primer on the ekpyrotic scenario
- Novel Symmetries in Axion-Dilaton Cosmology