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$P-V$ criticality and Joule-Thomson Expansion of Hayward-AdS black holes in 4D Einstein-Gauss-Bonnet gravity

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arxiv 2102.04308 v1 pith:FO63TIK2 submitted 2021-02-08 hep-th

classification hep-th
keywords blackalphacriticalitycurveseinstein-gauss-bonnetexpansiongravityhayward-ads
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

In this paper, the $P-V$ criticality and Joule-Thomson Expansion of Hayward-AdS black holes in 4D Einstein-Gauss-Bonnet gravity are studied in the extended phase space. We find the black hole always exhibits a phase transition similar to that of the Van der Waals system for any arbitrary positive parameters $\alpha$ and $g$. We also study the dependence of $\alpha$ and $g$ on the inversion curves and plot the inversion and isenthalpic curves in the $T-P$ plane, which can determine the cooling-heating regions.

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