Thermodynamics of R-charged Black Holes in AdS(5) From Effective Strings

TL;DR

This paper proposes that the thermodynamics of near-extremal R-charged black holes in AdS(5) can be understood via effective strings from giant graviton intersections, extending the effective string paradigm to AdS spaces.

Contribution

It introduces a new effective string description for R-charged black holes in AdS(5), linking their thermodynamics to giant graviton intersections and providing a fermion model for supersymmetric limits.

Findings

Effective string description matches black hole thermodynamics.

Fermion model captures supersymmetric black hole limits.

Microstate catalog in dual CFT proposed.

Abstract

It is well known that the thermodynamics of certain near-extremal black holes in asymptotically flat space can be lifted to an effective string description created from the intersection of D-branes. In this paper we present evidence that the semiclassical thermodynamics of near-extremal R-charged black holes in AdS(5)xS(5) is described in a similar manner by effective strings created from the intersection of giant gravitons on the S(5). We also present a free fermion description of the supersymmetric limit of the one-charge black hole, and we give a crude catalog of the microstates of the two and three-charge black holes in terms of operators in the dual conformal field theory.