{ "id": "hep-th/0408157", "version": "v2", "published": "2004-08-19T23:28:56.000Z", "updated": "2004-08-30T22:42:06.000Z", "title": "Tachyon condensation at one loop", "authors": [ "D. Nemeschansky", "V. Yasnov" ], "comment": "21 pages, references added", "categories": [ "hep-th" ], "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.", "revisions": [ { "version": "v2", "updated": "2004-08-30T22:42:06.000Z" } ], "analyses": { "keywords": [ "tachyon condensation", "boundary string field theory", "lower dimensional d-branes", "multiple d-branes", "tachyon potential" ], "note": { "typesetting": "TeX", "pages": 21, "language": "en", "license": "arXiv", "status": "editable", "inspire": 657041, "adsabs": "2004hep.th....8157N" } } }