2021/06/17 by Anindya Biswas
Physics and Astronomy · #AdS black hole #Black Holes and Theoretical Physics #Black hole (networking) #Cosmology and Gravitation Theories #Einstein #Enthalpy #Inversion temperature #Joule–Thomson effect #Mathematical physics #Noncommutative and Quantum Gravity Theories #Phase transition #Physics #Thermodynamics #gr-qc #hep-th
paper · pdf · doi:10.1088/1402-4896/ac2b42
published in Physica Scripta 96(12), 125310 (IOP Publishing) · 17 pages, 25 figures, comments are welcome
arxiv created 2021/06/17 · openalex publication_date 2021/09/29 · arxiv updated 2021/11/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Abstract In this paper we study Joule-Thomson expansion of non-linearly charged AdS black holes in Einstein-power-Yang-Mills (EPYM) gravity in D dimensions. Within the framework of extended phase space thermodynamics we identify the cosmological constant as thermodynamic pressure and the black hole mass with the enthalpy to derive the Joule- Thomson coefficient μ . Furthermore we have presented equations for inversion curves and the exact expression for the minimum inversion temperature. We also have calculated the ratio between the minimum of inversion temperature <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:msubsup> <mml:mrow> <mml:mi>T</mml:mi> </mml:mrow> <mml:mrow> <mml:mi>i</mml:mi> </mml:mrow> <mml:mrow> <mml:mi>min</mml:mi> </mml:mrow> </mml:msubsup> </mml:math> and the critical temperature T c and obtained the analytic expression for the ratio <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mstyle displaystyle="false"> <mml:mfrac> <mml:mrow> <mml:msubsup> <mml:mrow> <mml:mi>T</mml:mi> </mml:mrow> <mml:mrow> <mml:mi>i</mml:mi> </mml:mrow> <mml:mrow> <mml:mi>min</mml:mi> </mml:mrow> </mml:msubsup> </mml:mrow> <mml:mrow> <mml:msub> <mml:mrow> <mml:mi>T</mml:mi> </mml:mrow> <mml:mrow> <mml:mi>c</mml:mi> </mml:mrow> </mml:msub> </mml:mrow> </mml:mfrac> </mml:mstyle> </mml:math> that depends explicitly on the non- linearity parameter q and dimension D . We consider the isenthalpic curves in the T − P plane for different values of the fixed black hole mass and obtain heating and cooling region. Finally we have dealt with two limiting masses which characterizes the process of Joule-Thomson expansion in the EPYM black holes.