Causal nonlinear electrodynamics forces a singular center and at most three phases for RN-asymptotic black holes, with monotonicity proofs showing reduced mass and entropy for extreme dyonic cases.
The global monopole spacetime and its topological charge
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abstract
In this paper, we show that the global monopole spacetime is one of the exact solutions of Einstein equations by means of the method treating the matter field as a non-linear sigma model, without the weak field approximation applied in the original derivation by Barriola and Vilenkin in 1989. Furthermore, we find the physical origin of the topological charge in the global monopole spacetime. Finally, we generalize the proposal which generates spacetime from thermodynamical laws to the case that spacetime with global monopole charge.
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hep-th 2representative citing papers
Global monopole shifts critical parameters of charged AdS black holes but leaves mean-field universal scaling of Widom line and L± crossover lines unchanged in both ensembles.
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Black holes and causal nonlinear electrodynamics
Causal nonlinear electrodynamics forces a singular center and at most three phases for RN-asymptotic black holes, with monotonicity proofs showing reduced mass and entropy for extreme dyonic cases.
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Universal Supercritical Behavior in Global Monopole-Charged AdS Black Holes
Global monopole shifts critical parameters of charged AdS black holes but leaves mean-field universal scaling of Widom line and L± crossover lines unchanged in both ensembles.