Black holes as effective geometries
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TL;DR: In this article, it was shown that for such a picture of black holes as effective geometries to extend to cases with a finite horizon area, the scale of quantum effects in gravity would have to extend well beyond the vicinity of the singularities in the effective theory.
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Abstract: Gravitational entropy arises in string theory via coarse graining over an underlying space of microstates. In cases with enough supersymmetry, it has been possible to explicitly construct such microstates in spacetime and understand how coarse graining of non-singular, horizon-free objects can lead to an effective description as an extremal black hole. We discuss how these results arise in type II string theory on AdS5 × S5 and on AdS3 × S3 × T4 that preserve 16 and eight supercharges, respectively. For such a picture of black holes as effective geometries to extend to cases with a finite horizon area, the scale of quantum effects in gravity would have to extend well beyond the vicinity of the singularities in the effective theory. By studying examples in M-theory on AdS3 × S2 × CY that preserve four supersymmetries, we show how this can happen.
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Citations
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References
Counting giant gravitons in AdS 3
TL;DR: In this article, Mandal et al. quantized the set of all quarter Bogomol'nyi-Prasad-Sommerfield (BPS) brane probe solutions in global adS 3 ifmmode and showed that these solutions give rise to states in discrete representations of the Wess-Zumino-Witten model on the AdS 3 model.
Near horizon geometry of rotating black holes in five dimensions
Mirjam Cvetič,Finn Larsen +1 more
TL;DR: In this article, the perturbation spectrum of the rotating black hole and its relation to the underlying conformal field theory is discussed, and the asymptotic geometry is exploited to count the microstates and recover the precise value of the Bekenstein-Hawking entropy, with rotation taken properly into account.
5D fuzzball geometries and 4D polar states
TL;DR: In this paper, the map between a class of ''fuzzball'' solutions in five dimensions and four-dimensional multicentered solutions under the 4D-5D connection is analyzed.
New connections between 4D and 5D black holes
TL;DR: In this article, a simple equality between the BPS partition function of a general 4D IIA Calabi-Yau black hole and that of a 5D spinning M-theory Calabi Yau blackhole was proposed.
Entropy of near-extremal black holes in AdS5
TL;DR: New decoupling limits in which the field theory of the lightest open strings on the D-branes becomes dual to a near-horizon region of the black hole geometry and a string theoretic resolution of these singularities are suggested.