Black holes as effective geometries

By Vijay Balasubramanian, J. de Boer, S. El-Showk, I. Messamah. 2008

191 citations recorded by the source corpus.

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.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/bf4e098542dc719a351ba7daae07a50e725b6e7f

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. J. Boer
2. G. W. Gibbons
3. M. Shigemori
4. N. Warner
5. I. Bena
6. F. Quevedo
7. S. Mukohyama
8. V. Hubeny

In Nuclear and High Energy Physics

1. J. Boer
2. G. W. Gibbons
3. M. Shigemori
4. N. Warner
5. I. Bena
6. Ashoke Sen
7. F. Quevedo
8. V. Hubeny

In Statistical and Nonlinear Physics

1. G. W. Gibbons
2. J. Boer
3. M. Shigemori
4. N. Warner
5. I. Bena
6. Andrew Strominger
7. R. Myers

Citations in the corpus

• Global structure of five-dimensional fuzzballs (2013, background): “(For reviews of work on the three-charge systems, see [13, 14, 15, 16].”
• Brownian Motion in AdS/CFT (2008, unknown): “Any single microstate is horizon-free, but the typical microstates are expected to exhibit the characteristic features of black hole spacetimes, which has been confirmed explicitly for some concrete systems; see [15, 16, 17, 18] for reviews.”
• Exotic Branes in String Theory (2012, background): “2) is the so-called D1-D5 system and the puffed-up configuration of the KKM is nothing but the Lunin–Mathur geometries [84,85] that played an essential role in Mathur’s conjecture [32–36] The last one (5.”