9 papers
Extended Thermodynamics and Renyi Entropy Beyond Fixed Central Charge
Chatchai Promsiri, Phuwadon Chunaksorn, Ratchaphat Nakarachinda +1
An outstanding problem in the framework of conformal thermodynamics concerns the interpretation of variations in the central charge . In this paper, we construct a novel central…
Black Hole Thermodynamics via Tsallis Statistical Mechanics and Phase Transitions Probed by Optical Characteristics
Phuwadon Chunaksorn, Ratchaphat Nakarachinda, Pitayuth Wongjun
We develop a non-extensive thermodynamic framework for Reissner--Nordström black holes based on a near-horizon photon-gas model within Tsallis statistics. We derive the generalize…
Schwarzschild-de Sitter black hole as a correlated qubit system via entropic identification
Ratchaphat Nakarachinda, Lunchakorn Tannukij, Pitayuth Wongjun +1
The thermodynamic behaviours of multi-horizon black holes such as a Schwarzschild-de Sitter black hole have been one of the long-standing mysteries in gravitational physics since t…
Greybody Factor for massive scalar field in charged black hole
Ratchaphat Nakarachinda, Suppawit Polkong, Pitayuth Wongjun
The greybody factor of a massive scalar field in the Reissner-Nordström black hole is investigated using the Wentzel-Kramers-Brillouin (WKB) approximation and rigorous bound metho…
Greybody factors of charged black holes with axion hair
Ratchaphat Nakarachinda, Petarpa Boonserm, Antonio De Felice +2
We study the greybody factor of charged hairy black holes (BHs) that arise due to the presence of an axion coupled to the electromagnetic field. Specifically, we consider spin-0 an…
Black Hole Thermodynamics via Tsallis Statistical Mechanics
Phuwadon Chunaksorn, Ratchaphat Nakarachinda, Pitayuth Wongjun
An investigation of black hole thermodynamics based on Tsallis statistical mechanics is explored through the study of the thermodynamics of a gas system located near the horizon of…