The dual-horizon coexistence region in Euler-Heisenberg de Sitter spacetime exhibits van der Waals-like phase transitions whose order depends on a nonlinear parameter, with a constant topological number W=+1.
Stability and phase transition of rotating Kaluza-Klein black holes
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In this paper, we investigate thermodynamics and phase transitions of a 4-dimensional rotating Kaluza-Klein black hole solution in the presence of Maxwell electrodynamics. Calculating the conserved and thermodynamical quantities shows that the first law of thermodynamics is satisfied. To find the stable black hole' s criteria, we check the stability in the canonical ensemble by analyzing the behavior of the heat capacity. We also consider a massive scalar perturbation minimally coupled to the background geometry of the 4-dimensional static Kaluza-Klein black hole and investigate the quasinormal modes by employing the WKB approximation. The anomalous decay rate of the quasinormal modes spectrum is investigated by using the sixth-order WKB formula and quasi-resonance modes of the black hole are studied with averaging of Pade approximations as well.
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High-order QED correction impacts on phase transition of the Euler-Heisenberg dS spacetime
The dual-horizon coexistence region in Euler-Heisenberg de Sitter spacetime exhibits van der Waals-like phase transitions whose order depends on a nonlinear parameter, with a constant topological number W=+1.