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Restricted phase space thermodynamics for AdS black holes via holography

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arxiv 2112.02386 v4 pith:46MV5WWF submitted 2021-12-04 gr-qc hep-th

classification gr-qchep-th
keywords blackthermodynamicsformalismholevariablesbehaviorsholesphase
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abstract

A new formalism for thermodynamics of AdS black holes called the {\em restricted phase space thermodynamics} (RPST) is proposed. The construction is based on top of Visser's holographic thermodynamics, but with the AdS radius fixed as a constant. Thus the RPST is free of the $(P,V)$ variables but inherits the central charge and chemical potential as a new pair of conjugate thermodynamic variables. In this formalism, the Euler relation and the Gibbs-Duhem equation hold simultaneously with the first law of black hole thermodynamics, which guarantee the appropriate homogeneous behaviors for the black hole mass and the intensive variables. The formalism is checked in detail in the example case of 4-dimensional RN-AdS black hole in Einstein-Maxwell theory, in which some interesting thermodynamic behaviors are revealed.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Finite-cutoff Holographic Thermodynamics

    hep-th 2025-07 conditional novelty 6.0 of 10

    Finite-cutoff holography yields a thermodynamic duality between T^2-deformed CFTs and Schwarzschild-AdS black holes with a Dirichlet wall, including a teardrop coexistence curve with up to three states at one temperature.

  2. RPST-Inspired Formalism for Black Holes in Flat Spacetime

    hep-th 2024-11 conditional novelty 6.0 of 10

    A λ-ζ pair of thermodynamic variables built from the Rényi entropy parameter is introduced so that flat black holes acquire RPST-style thermodynamics with van der Waals-like phase transitions.

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