Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 2, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP02(2020)154
Keywords
AdS-CFT Correspondence; Black Holes in String Theory; Supersymmetric Gauge Theory
Categories
Funding
- South African Research Chairs Initiative of the Department of Science and Technology
- National Research Foundation
- project Towards a deeper understanding of black holes with non-relativistic holography of the Independent Research Fund Denmark [DFF-6108-00340]
- Simons Foundation Mathematical and Physical Sciences Targeted Grants to Institutes [509116]
- NSFC [11875064]
- Max-Planck Partergruppen fund
- Simons Foundation through the Simons Foundation Emmy Noether Fellows Program at Perimeter Institute
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Extremal black holes in general dimensions are well known to contain an AdS(2) factor in their near-horizon geometries. If the extremal limit is taken in conjunction with a specific vanishing horizon limit, the so-called Extremal Vanishing Horizon (EVH) limit, the AdS(2) factor lifts to a locally AdS(3) factor with a pinching angular direction. In this paper, we study the EVH limit of asymptotically AdS black holes which preserve some supersymmetry. The primary example we consider is the 1/16(th) BPS asymptotically AdS(5) black hole, whose EVH limit has an AdS(3) factor in its near-horizon geometry. We also consider the near-EVH limit of this black hole, in which the near-horizon geometry instead contains an extremal BTZ factor. We employ recent results on the large-N limit of the superconformal index of the dual CFT4 to understand the emergence of a CFT2 in the IR of the CFT4, which is the field theory dual to the emergence of the locally AdS(3) factor in the near-horizon geometry. In particular, we show that the inverse Laplace transform of the superconformal index, yielding the black hole entropy, becomes equivalent to the derivation of a Cardy formula for the dual CFT2. Finally, we examine the EVH limit of supersymmetric black holes in other dimensions.
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