The statistical mechanics of near-BPS black holes

By M. Heydeman, Luca V. Iliesiu, G. Turiaci, Wenli Zhao. Journal of Physics A: Mathematical and Theoretical, 2020

186 citations recorded by the source corpus.

Due to the failure of thermodynamics for low temperature near-extremal black holes, it has long been conjectured that a ‘thermodynamic mass gap’ exists between an extremal black hole and the lightest near-extremal state. For non-supersymmetric near-extremal black holes in Einstein gravity with an AdS 2 throat, no such gap was found. Rather, at that energy scale, the spectrum exhibits a continuum of states, up to non-perturbative corrections. In this paper, we compute the partition function of near-BPS black holes in supergravity where the emergent, broken, symmetry is PSU(1, 1|2). To reliably compute this partition function, we show that the gravitational path integral can be reduced to that of a N=4 supersymmetric extension of the Schwarzian theory, which we define and exactly quantize. In contrast to the non-supersymmetric case, we find that black holes in supergravity have a mass gap and a large extremal black hole degeneracy consistent with the Bekenstein–Hawking area. Our results verify a plethora of string theory conjectures, concerning the scale of the mass gap and the counting of extremal micro-states.

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

View Paper: https://www.semanticscholar.org/paper/7d6acb3adaad159507ae9fe335a07725d54016db

How researchers see this paper

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In Astronomy and Astrophysics

  1. Luca V. Iliesiu
  2. G. Turiaci

In Nuclear and High Energy Physics

  1. Luca V. Iliesiu
  2. G. Turiaci
  3. Tom Mertens
  4. Wenli Zhao
  5. M. Heydeman

In Statistical and Nonlinear Physics

  1. Luca V. Iliesiu
  2. G. Turiaci
  3. Tom Mertens

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