Dynamic SU(2) structure from seven-branes

[摘要] We obtain a family of supersymmetric solutions of type IIB supergravity with dynamic SU(2) structure, which describe the local geometry near a stack of four D7-branes and one O7-plane wrapping a rigid four-cycle. The deformation to a generalized complex geometry is interpreted as a consequence of nonperturbative effects in the seven-brane gauge theory. We formulate the problem for seven-branes wrapping the base of an appropriate del Pezzo cone, and in the near-stack limit in which the four-cycle is flat, we obtain an exact solution in closed form. Our solutions serve to characterize the local geometry of nonperturbatively-stabilized flux compactifications.

[发布日期] 2010-12-16 [发布机构] SLAC National Accelerator Laboratory

[关键词] Su-2 Groups;Supergravity;Supersymmetry;Compactification Theory-Hep,Hepth;72 Physics Of Elementary Particles And Fields