Defect black hole horizons and new SCFT twists

Abstract: In this talk we will give a pedagogical review of new (supersymmetric) black hole horizons containing defects, that have appeared recently in the literature. These 2d horizons are topologically punctured two-spheres, with at least two punctures, and are equipped with non-constant curvature metrics. They arise when considering the near-horizon limit of extremal asymptotically AdS accelerating black holes. Interestingly, despite the black hole solutions having singularities, by uplifting the solutions to string theory the solution can be made singularity free in certain cases. By using AdS/CFT we have a complimentary dual field theory perspective. The near-horizon geometry corresponds to the fixed point of an RG-flow across dimensions, triggered by wrapping a parent theory on the 2d horizon. As we will show, in order for the fixed point to preserve supersymmetry, the introduction of new and novel twists of the theory is required. We will make some comments on performing a microstate computation of the entropy of the black hole.

HEP - theory

Audience: researchers in the topic

Advances in Theoretical Physics 2022

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