D-Branes and Noncommutative String Theory
| dc.creator | Panigrahi, Kamal Lochan | |
| dc.date | 2004-09-27 | |
| dc.date.accessioned | 2026-07-07T04:17:32Z | |
| dc.date.available | 2026-07-07T04:17:32Z | |
| dc.description | In this thesis we discuss some nonperturbative and noncommutative aspects of string theory. We present low-energy background field solutions corresponding to various D-branes (and their bound states) and intersecting branes in flat and pp-wave spacetime. A class of D-brane bound states are constructed from charged macroscopic strings and they are shown to satisfy the mass-charge relationship of 1/2 BPS bound states. Another class of D-branes and intersecting branes are constructed, by solving the type II field equations explicitly, in pp-wave background with constant and non-constant flux. The worldsheet construction of these D-branes and their spacetime supersymmetry properties have also been analyzed in some detail. Further, we study an example of open strings ending on D-branes with mixed boundary condition. In this context, we analyze various open and mixed sector tree-level amplitudes of N=2 strings in the presence of constant NS-NS antisymmetric tensor (B) field. | |
| dc.description | 109 pages, Thesis (Advisor: Alok Kumar); references added, very minor modifications | |
| dc.identifier | https://arxiv.org/abs/hep-th/0409276 | |
| dc.identifier | http://arxiv.org/abs/hep-th/0409276 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/52789 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | D-Branes and Noncommutative String Theory | |
| dc.type | text |