Noether Charge, Thermodynamics and Phase Transition of a Black Hole in the Schwarzschild-Anti-de Sitter-Beltrami spacetime

TL;DR

This paper analyzes the thermodynamic behavior and phase transitions of a black hole in Schwarzschild-Anti-de Sitter-Beltrami spacetime, introducing inertial coordinates and calculating key thermodynamic quantities using Noether charge methods.

Contribution

It introduces a new analysis of black hole thermodynamics in Beltrami coordinates and formulates the first law, Smarr relation, and phase transition characteristics in this spacetime.

Findings

Temperature is bounded by the Anti-de Sitter radius.

First-order phase transition between small and large black holes is identified.

Hawking-Page transition temperature is computed and compared to standard SAdS black holes.

Abstract

In this work, we investigate thermodynamic properties and Hawking-Page phase transition of a black hole in the Schwarzschil-Anti-de Sitter-Beltrami (SAdSB) spacetime. We discuss the Beltrami or inertial coordinates of the Anti-de Sitter(AdS) spacetime. Transformation between the non-inertial and inertial coordinates of the AdS spacetime is formulated to construct the solution of spherical gravitating mass and other physical quantities. The Killing vector is determined to calculate the event horizon radius of this black hole. The entropy and the temperature of SAdSB black hole are determined by the Noether charge method and it is shown that the temperature is bounded by the Anti-de Sitter radius. Similarly, the Smarr relation and first law of black hole thermodynamics for the SAdSB spacetime have been formulated. The Gibbs free energy and heat capacity of this black hole are calculated and we consider the phase transition between small and large black holes. The first-order phase transition between the thermal AdS spacetime and large black hole phase is also investigated and the Hawking-Page temperature is computed and compared with the case of the Schwarzschild-Anti-de Sitter(SAdS) black hole.