Tachyon condensation on brane sphalerons
arXiv:hep-th/0505043 · doi:10.1088/1126-6708/2005/08/036
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 ϕ^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.
To appear in JHEP, 13 pages, 2 eps figures, minor changes and references added
References in corpus (1)
Cited by in corpus (8)
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