From Big Crunch to Big Bang: A Quantum String Cosmology Perspective
classification
🌀 gr-qc
astro-phhep-th
keywords
cosmologycrunchquantumstringuniverseactionapproachbang
read the original 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.
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