STRING VARIATIONS ON KALUZA-KLEIN COSMOLOGY

Abstract
We study the cosmological solutions of the two-dimensional Brans-Dicke equations considering a gas of c=1 strings in S1×ℝ as the source of the gravitational field. We also study the implications of the R-duality invariance on the solutions. To this purpose we conjecture that, as it happens for massless fields in finite boxes, the free energy of a gas of massless string excitations is not given by the corresponding toroidal compactification.

This publication has 0 references indexed in Scilit: