Tachyon condensation at one loop
High Energy Physics - Theory
2007-05-23 v2
Abstract
Using boundary string field theory we study the decay of unstable D-branes to lower dimensional D-branes via the tachyon condensation at one loop level. We analyze one loop divergences and use the Fischler-Susskind mechanism to cancel divergences arising at the boundary of moduli space. The tachyon action up to the second derivative is obtained and a logarithmic correction to the tachyon potential is written down explicitly. Multiple D-branes is also considered and the role of the boundary fermions is highlighted.
Keywords
Cite
@article{arxiv.hep-th/0408157,
title = {Tachyon condensation at one loop},
author = {D. Nemeschansky and V. Yasnov},
journal= {arXiv preprint arXiv:hep-th/0408157},
year = {2007}
}
Comments
21 pages, references added