A Wave-function for Stringy Universes

Details A Wave-function for Stringy Universes A Wave-function for Stringy Universes

2007-04-16

arxiv.org/abs/0704.1996v3

JHEP 0708:018,2007

Physics

High Energy Physics

High Energy Physics - Theory

30 pages, 3 figures, v3: references added

Scientific paper

10.1088/1126-6708/2007/08/018

We define a wave-function for string theory cosmological backgrounds. We give a prescription for computing its norm following an earlier analysis within general relativity. Under Euclidean continuation, the cosmologies we discuss in this paper are described in terms of compact parafermionic worldsheet systems. To define the wave-function we provide a T-fold description of the parafermionic conformal field theory, and of the corresponding string cosmology. In specific examples, we compute the norm of the wave-function and comment on its behavior as a function of moduli.

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