Noncommutative Tachyons
High Energy Physics - Theory
2009-10-31 v1
Abstract
When unstable Dp-branes in type II string theory are placed in a B-field, the resulting tachyonic world-volume theory becomes noncommutative. We argue that for large noncommutativity parameter, condensation of the tachyon as a noncommutative soliton leads to new decay modes of the Dp-brane into (p-2)-brane configurations, which we interpret as suitably smeared BPS D(p-1)-branes. Some of these configurations are metastable. We discuss various generalizations of this decay process.
Keywords
Cite
@article{arxiv.hep-th/0005006,
title = {Noncommutative Tachyons},
author = {Keshav Dasgupta and Sunil Mukhi and Govindan Rajesh},
journal= {arXiv preprint arXiv:hep-th/0005006},
year = {2009}
}
Comments
15 pages, harvmac (b)