Attractor Flows from Defect Lines

Details Attractor Flows from Defect Lines Attractor Flows from Defect Lines

2010-02-12

arxiv.org/abs/1002.2614v2

Physics

High Energy Physics

High Energy Physics - Theory

28 pages

Scientific paper

Deforming a two dimensional conformal field theory on one side of a trivial defect line gives rise to a defect separating the original theory from its deformation. The Casimir force between these defects and other defect lines or boundaries is used to construct flows on bulk moduli spaces of CFTs. It turns out, that these flows are constant reparametrizations of gradient flows of the g-functions of the chosen defect or boundary condition. The special flows associated to supersymmetric boundary conditions in N=(2,2) superconformal field theories agree with the attractor flows studied in the context of black holes in N=2 supergravity.

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