Critical Black Holes in a Large Charge Limit

Abstract

The extended thermodynamics of Reissner-Nordström charged black holes in D-dimensional anti-de Sitter spacetime has a phase structure in the (T,p) plane that includes a line of first order phase transitions ending in a second order transition point. For each D>=4, properties of the critical black hole at that point are explored, motivated by the observation that in D=4 its neighbourhood plays a core role in defining a very special class of heat engines that asymptote to Carnot efficiency in the large charge limit. This new limit provides a model of a novel low-temperature thermodynamic system. The double limit of approaching the horizon while sending q large at an appropriate rate yields a fully decoupled D-dimensional Rindler spacetime with zero cosmological constant.

4 pages, 1 figure

References in corpus (3)

• Building an AdS/CFT superconductor
• Efficiency statistics at all times: Carnot limit at finite power
• An Exact Model of the Power/Efficiency Trade-Off While Approaching the Carnot Limit

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• Nonlinearity effect on Joule-Thomson expansion of Einstein-power-Yang-Mills AdS black hole
• Critical Heat Engines in Massive Gravity
• Phase transition of non-linear charged Anti-de Sitter black holes