Tachyon condensation on brane sphalerons
High Energy Physics - Theory
2009-11-11 v2
Abstract
We consider a sphaleron solution in field theory that provides a toy model for unstable D-branes of string theory. We investigate the tachyon condensation on a Dp-brane. The localized modes, including a tachyon, arise in the spectrum of a sphaleron solution of a \phi^4 field theory on M^{p+1}\times S^1. We use these modes to find a multiscalar tachyon potential living on the sphaleron world-volume. A complete cancelation between brane tension and the minimum of the tachyon potential is found as the size of the circle becomes small.
Keywords
Cite
@article{arxiv.hep-th/0505043,
title = {Tachyon condensation on brane sphalerons},
author = {F. A. Brito},
journal= {arXiv preprint arXiv:hep-th/0505043},
year = {2009}
}
Comments
To appear in JHEP, 13 pages, 2 eps figures, minor changes and references added