Boundary Conditions in Quantum String Cosmology

Preprint

10 January 1997

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-th/9701035

Abstract

We discuss in detail how to consistently impose boundary conditions in quantum string cosmology. Since a classical time parameter is absent in quantum gravity, such conditions must be imposed with respect to intrinsic variables. Constructing wave packets for minisuperspace models from different tree-level string effective actions, we explain in particular the meaning of a transition between ``pre-big-bang" and ``post-big-bang" branches. This leads to a scenario different from previous considerations.

Keywords

QUANTUM STRING COSMOLOGY
CONDITIONS IN QUANTUM
BOUNDARY CONDITIONS
STRING COSMOLOGY
BIG BANG
GRAVITY

All Related Versions

Version 1, 1997-01-09, ArXiv
Version 2, 1997-01-10, ArXiv
Published version: Physics Letters B, 397 (3-4), 185.

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