Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1999-10-25
Nucl.Phys. B575 (2000) 177-194
Physics
High Energy Physics
High Energy Physics - Theory
23 pages, latex, uses subeqn.sty and fullpage.sty
Scientific paper
10.1016/S0550-3213(00)00066-3
The D1/D5 system is considered in the presence of the NS B field. An explicit supergravity solution in the asymptotically flat and near horizon limits is presented. Explicit mass formulae are presented in both cases. This solution has no D3 source branes and represents a true bound state of the D1/D5 system. We study the motion of a separated D1-brane in the background geometry described above and reproduce the Liouville potential that binds the D1 brane. A gauge theory analysis is also presented in the presence of Fayet-Iliopoulos (FI) parameters which can be identified with the self-dual part of the NS B field. In the case of a single D5-brane and an arbitrary number of D1 branes we can demonstrate the existence of a bound state in the Higgs branch. We also point out the connection of the SCFT on the resolved Sym$_{Q_1Q_5}(\tilde T^4)$ with recent developments in non-commutative Yang-Mills theory.
Dhar Avinash
Mandal Gautam
Wadia Spenta R.
Yogendran K. P.
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