Quantum-corrected thermodynamics and P–V criticality of self-gravitating Skyrmion black holes

Abstract

In this paper, we study the quantum corrected thermodynamics of a class of black holes generated by self-gravitating Skyrmion models. One such black hole solution is Einstein-Skrymion black hole. We first compute the ADM mass of Einstein-Skyrmion black hole using on-shell Hamiltonian formalism present already in the literature. We then consider non-extended phase space thermodynamics and derive expressions for various thermodynamic quantities like the Hawking temperature, entropy, pressure, Gibbs free energy, and heat capacity. Next, we study the effect of quantum corrections on the thermodynamics of the Einstein-Skyrmion black hole. We observe that apart from leading to stability, the quantum correction induce an AdS (anti-de sitter) to dS (de sitter) phase transition in Einstein-Skrymion black hole. Treating cosmological constant as the pressure, we determine the P–V criticality of the Einstein-Skrymion black hole and observe that the P–V criticality depends on model parameters λ and K. The study of P–V criticality done here could help to estimate the experimental bound on the values of parameters λ and K.

Some Possible Schemes in Higher Dimensional Stationary Skyrme Blackhole Formulation

“…It is known that the regular gravitating skyrmions, known as Skyrme stars, exist in four dimensions and its properties describe the neutron stars for both static and stationary cases [3,4]. The spherically symmetric black hole solutions in four dimensions are known to be exist as well which become one of the first counter-example of no-hair theorem [5,6,7,8,9]. An interesting extension of these results are the stationary skyrmion with an axially symmetric space-time.…”