On String Gas Cosmology at Finite Temperature

Details On String Gas Cosmology at Finite Temperature On String Gas Cosmology at Finite Temperature

2003-10-03

arxiv.org/abs/hep-th/0310032v2

Physics

High Energy Physics

High Energy Physics - Theory

8 pages, contribution to the proceedings of "String Phenomenology 2003" conference, Durham, UK, July 29-August 4

Scientific paper

Within an adiabatic approximation, thermodynamical equilibrium and a small, nine dimensional, toroidal universe as initial conditions, we analyze the evolution of the dimensions in two different regimes: (i) the Hagedorn regime, with a single scale factor with a nearly constant time evolution (ii) an almost-radiation dominated regime, including the leading corrections due to the lightest Kaluza Klein and winding modes, in which for some initial conditions the large dimensions continue to expand and the small ones remain small.

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