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Criticality of Lovelock AdS black holes is investigated from a completely new perspective. Instead of viewing the cosmological constant as a variable, we treat the Lovelock parameter α as a variable and study the corresponding T–r+ criticality and T–S criticality. Specifically, we consider the seven-dimensional uncharged spherical Lovelock AdS black holes as an example. We obtain the analytical expression...
In this Letter, the nature of phase transition at the critical point of P-V criticality in the extended phase space of RN-AdS black holes has been investigated. By treating the cosmological constant and its conjugate quantity as thermodynamic pressure and volume respectively, we introduce the original expressions of Ehrenfest equations directly into the black hole research instead of utilizing the...
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