A Proposal for Altering the Unification Scale in String Theory
Abstract
An ensemble of short open strings in equilibrium with the heat bath provided by the Euclidean worldvolume of a stack of Dbranes undergoes a thermal phase transition to a long string phase. The transition temperature is just below the string scale. We point out that this phenomenon provides a simple mechanism within open and closed string theories for altering the strong-electro-weak coupling unification scale relative to the fundamental closed string mass scale in spacetimes with external electromagnetic background.
Keywords
Cite
@article{arxiv.hep-th/0203058,
title = {A Proposal for Altering the Unification Scale in String Theory},
author = {Shyamoli Chaudhuri},
journal= {arXiv preprint arXiv:hep-th/0203058},
year = {2009}
}
Comments
Latex, 7pgs. v5 Minor changes to main paper. Note added, following recent clarification of the first-order deconfining phase transition to a long string phase in the low energy finite temperature supersymmetric gauge theory limit (hep-th/0409301). Updated references. v6 Eq2 corrected