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Clapeyron equations and fitting formula of the coexistence curve in the extended phase space of charged AdS black holes

2 Pith papers cite this work. Polarity classification is still indexing.

2 Pith papers citing it
abstract

In this paper, we first review the equal area laws and Clapeyron equations in the extended phase space of the charged anti-de Sitter black holes. With different fixed parameters, the Maxwell's equal area law holds not only in the pressure-thermodynamic volume oscillatory line, but also in the charge-electric potential and temperature-entropy oscillatory lines. The conventional Clapeyron equation is generalized and two extra equations are found. Moreover, we show that the coexistence curve of the small and large charged black holes is charge independent in the reduced parameter space for any dimension of spacetime. The highly accurate fitting formula for the coexistence curve is also presented. Using this fitting formula of the coexistence curve, we find that the Clapeyron equations are highly consistent with the calculated values. The fitting formula is also very useful for further study on the thermodynamic property of the system varying along the coexistence curve.

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fields

hep-th 2

years

2026 1 2016 1

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representative citing papers

Black hole chemistry: thermodynamics with Lambda

hep-th · 2016-08-22 · accept · novelty 3.0

Treating the cosmological constant as pressure in black hole thermodynamics yields an extended dictionary with enthalpy, thermodynamic volume, and chemical-like phase transitions including Van der Waals behavior, reentrant transitions, and triple points.

citing papers explorer

Showing 2 of 2 citing papers.

  • On Thermodynamics of Charged Black Holes, Swampland, and Dark Matter hep-th · 2026-05-21 · unverdicted · none · ref 53 · internal anchor

    Authors use black hole thermodynamics with dynamical cosmological constant to connect swampland conjectures and approach dark matter via scalar fields and Kaluza-Klein reduction.

  • Black hole chemistry: thermodynamics with Lambda hep-th · 2016-08-22 · accept · none · ref 146 · internal anchor

    Treating the cosmological constant as pressure in black hole thermodynamics yields an extended dictionary with enthalpy, thermodynamic volume, and chemical-like phase transitions including Van der Waals behavior, reentrant transitions, and triple points.