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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Echoes of Kerr-like wormholes
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References
Phase moduli space of supertubes
TL;DR: In this article, the authors studied possible deformations of BPS supertubes keeping their conserved charges fixed, and they showed that there is no flat direction to closed super-tubes of circular cross-section with uniform electric and magnetic fields.
Geometry and topology of bubble solutions from gauge theory
TL;DR: In this article, the geometrical and topological aspects of certain BPS type IIB supergravity solutions are captured by the super Yang-Mills gauge theory in the AdS/CFT context.
More bubbling solutions
TL;DR: In this article, the authors construct families of asymptotically flat, smooth, horizonless solutions with a large number of non-trivial two-cycles of = 1 five-dimensional supergravity with an arbitrary number of vector multiplets, which may or may not have the charges of a macroscopic black hole and which contain the known bubbling solutions as a sub-family.
Minisuperspace quantization of "Bubbling AdS" and free fermion droplets
TL;DR: In this article, the authors quantize the space of 1/2 BPS configurations of type-IIB SUGRA found by Lin, Lunin and Maldacena (hep-th/0409174), directly in supergravity.