%0 Journal Article
%T String Thermodynamics in D-Brane Backgrounds
%A S. A. Abel
%A J. L. F. Barbon
%A I. I. Kogan
%A E. Rabinovici
%J Physics
%D 1999
%I arXiv
%R 10.1088/1126-6708/1999/04/015
%X We discuss the thermal properties of string gases propagating in various D-brane backgrounds in the weak-coupling limit, and at temperatures close to the Hagedorn temperature. We determine, in the canonical ensemble, whether the Hagedorn temperature is limiting or non-limiting. This depends on the dimensionality of the D-brane, and the size of the compact dimensions. We find that in many cases the non-limiting behaviour manifest in the canonical ensemble is modified to a limiting behaviour in the microcanonical ensemble and show that, when there are different systems in thermal contact, the energy flows into open strings on the `limiting' D-branes of largest dimensionality. Such energy densities may eventually exceed the D-brane intrinsic tension. We discuss possible implications of this for the survival of Dp-branes with large values of p in an early cosmological Hagedorn regime. We also discuss the general phase diagram of the interacting theory, as implied by the holographic and black-hole/string correspondence principles.
%U http://arxiv.org/abs/hep-th/9902058v3