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arXiv · 2601.17081

Quasi-homogeneous geometrothermodynamics of a noncommutative Reissner-Nordstrom black hole

Alberto Maya·Hernando Quevedo
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Abstract

We present the thermodynamic properties of a noncommutative Reissner Nordstrom (NCRN) black hole (BH) modeled with Lorentzian distributions. The analysis is carried out using a Legendre invariant formalism called Geometrothermodynamics (GTD) which is applied to a quasihomogeneous system generated by the NCRN BH. This formalism enables the study of phase transitions by locating Ricci scalar singularities, from which the phase transition points are determined in terms of the thermodynamic variables. We also examine how the noncommutative (NC) parameter can be interpreted as a thermodynamic variable within quasi-homogeneous thermodynamic laws, highlighting its potential role on phase transitions beyond those well-known characterized by divergences in the heat capacity.

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Alberto Maya, Hernando Quevedo. 2026-01-23. Quasi-homogeneous geometrothermodynamics of a noncommutative Reissner-Nordstrom black hole. https://arxiv.org/abs/2601.17081

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