Time-Dependent Warping, Fluxes, and NCYM

Details Time-Dependent Warping, Fluxes, and NCYM Time-Dependent Warping, Fluxes, and NCYM

2003-02-07

arxiv.org/abs/hep-th/0302049v2

JHEP 0303 (2003) 041

Physics

High Energy Physics

High Energy Physics - Theory

32 pages, LaTeX, references added

Scientific paper

10.1088/1126-6708/2003/03/041

We describe the supergravity solutions dual to D6-branes with both time-dependent and time-independent B-fields. These backgrounds generalize the Taub-NUT metric in two key ways: they have asymmetric warp factors and background fluxes. In the time-dependent case, the warping takes a novel form. Kaluza-Klein reduction in these backgrounds is unusual, and we explore some of the new features. In particular, we describe how a localized gauge-field emerges with an analogue of the open string metric and coupling. We also describe a gravitational analogue of the Seiberg-Witten map. This provides a framework in supergravity both for studying non-commutative gauge theories, and for constructing novel warped backgrounds.

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