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Phase transitions and Geometrothermodynamics of Regular black holes
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In this paper we study the thermodynamics and state space geometry of regular black hole solutions such as Bardeen black hole, Ay\'{o}n-Beato and Garc\'{i}a black hole, Hayward black hole and Berej-Matyjasek-Trynieki-Wornowicz black hole. We find that all these black holes show second order thermodynamic phase transitions(SOTPT) by observing discontinuities in heat capacity-entropy graphs as well as the cusp type double point in free energy-temperature graph. Using the formulation of geometrothermodynamics we again find the singularities in the heat capacity of the black holes by calculating the curvature scalar of the Legendre invariant metric.
Forward citations
Cited by 2 Pith papers
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Holographic explorations of regular black holes in pure gravity
Regular, asymptotically AdS black holes are shown to exist in pure quasi-topological gravity, and their thermodynamics, quasinormal modes, Wilson loops, and a Type IIB field redefinition map are worked out.
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Thermodynamic Phase Transitions and Quantum Entropy Corrections in the Simpson-Visser Regular Black Hole
For the Simpson-Visser regular black hole, the heat capacity diverges at a = √2 m, but the claimed quantum entropy corrections are internally inconsistent: the 1/a² term has the wrong sign and the remnant-entropy form...
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