The fate of classical tensor inhomogeneities in pre-big-bang string cosmology

Details The fate of classical tensor inhomogeneities in pre-big-bang string cosmology The fate of classical tensor inhomogeneities in pre-big-bang string cosmology

2001-02-23

arxiv.org/abs/gr-qc/0102102v1

Phys.Rev. D64 (2001) 043501

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

16 pages, 2 figures

Scientific paper

10.1103/PhysRevD.64.043501

In pre-big-bang string cosmology one uses a phase of dilaton-driven inflation
to stretch an initial (microscopic) spatial patch to the (much larger) size of
the big-bang fireball. We show that the dilaton-driven inflationary phase does
not naturally iron out the initial classical tensor inhomogeneities unless the
initial value of the string coupling is smaller than 10^(-35).

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