This analysis reveals the robustness of the Goon-Penco relation for black holes in perfect fluid dark matter, suggesting universal thermodynamic properties.
In this paper, an in-depth investigation of the thermodynamic relations for AdS Reissner-Nordström black holes immersed in perfect fluid dark matter (PFDM) is presented. This investigation is conducted within both the restricted phase space (RPS) and the conformal field theory (CFT) frameworks. The influence of non-extensive forms of entropy is also systematically examined. Our results demonstrate that the Goon-Penco (GP) relation for charged AdS black holes holds within both the RPS and CFT frameworks, irrespective of the specific form of entropy modification. The conclusion of the present study demonstrates that the GP relation constitutes a universal thermodynamic relation.
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Zhen et al. (2025) studied this question.
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