Worldsheet Description of Tachyon Condensation in Open String Theory
| dc.creator | Uesugi, Tadaoki | |
| dc.date | 2003-02-17 | |
| dc.date | 2003-02-26 | |
| dc.date.accessioned | 2026-07-07T04:14:53Z | |
| dc.date.available | 2026-07-07T04:14:53Z | |
| dc.description | In this thesis we review the fundamental framework of boundary string field theory (BSFT) and apply it to the tachyon condensation on non-BPS systems in the superstring theory. The boundary string field theory can be regarded as a natural extension of the nonlinear sigma model. By using this theory we can describe the tachyon condensation exactly and also obtain the effective actions on non-BPS systems consisting of the Dirac-Born-Infeld type action and the Wess-Zumino type action. Especially the Wess-Zumino action is written by superconnection and coincides with the mathematical argument by K-theory. Moreover we also discuss the tachyon condensation keeping the conformal invariance (on-shell). The exact argument by using the boundary state formalism gives a good support to the conjecture of the tachyon condensation and it is also consistent with boundary string field theory. | |
| dc.description | 120 pages. A dissertation presented to the faculty of University of Tokyo in candidacy for the degree of Doctor of Science, references added, minor corrections | |
| dc.identifier | https://arxiv.org/abs/hep-th/0302125 | |
| dc.identifier | http://arxiv.org/abs/hep-th/0302125 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/51800 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Worldsheet Description of Tachyon Condensation in Open String Theory | |
| dc.type | text |