37 citations · 159 across the 17 of their papers we have counts for
18 papers
Perturbations and stability of black holes with static scalar hair in general GLPV theories
Petarpa Boonserm, Antonio De Felice, Ratchaphat Nakarachinda +2
We derive the background equations and complete odd- and even-parity quadratic actions for static, spherically symmetric black holes with radial scalar hair in general quartic-quin…
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 generalized…
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 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…
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 method…
-Equilibrium of Gas in Spacetime of Multi-horizon Black Holes
Phuwadon Chunaksorn, Ratchaphat Nakarachinda, Pitayuth Wongjun
We investigate the possibility of describing the thermal system with different temperatures for a black hole with multiple horizons. The black hole with two horizons such as Schwar…
Rényi Holographic Dark Energy
Ratchaphat Nakarachinda, Chakrit Pongkitivanichkul, Daris Samart +2
In this work, the holographic dark energy model is constructed by using the non-extensive nature of the Schwarzschild black hole via the Rényi entropy. Due to the non-extensivity,…
Thermodynamics of Black Holes with Rényi Entropy from Classical Gravity
Ratchaphat Nakarachinda, Chatchai Promsiri, Lunchakorn Tannukij +1
The nonextensive nature of black holes is one of the most intriguing discoveries. In fact, the black hole entropy is a nonextensive quantity that scales by its surface area at the…
Cosmology in theories with spontaneous scalarization of neutron stars
Ratchaphat Nakarachinda, Sirachak Panpanich, Shinji Tsujikawa +1
In a model of spontaneous scalarization of neutron stars proposed by Damour and Esposite-Farese, a general relativistic branch becomes unstable to trigger tachyonic growth of a sca…
Thermodynamics of Asymptotically de-Sitter Black Hole in dRGT Massive Gravity from Rényi entropy
Phuwadon Chunaksorn, Ekapong Hirunsirisawat, Ratchaphat Nakarachinda +2
The thermodynamic properties of the de Rham-Gabadadze-Tolley (dRGT) black hole in the asymptotically de Sitter (dS) spacetime are investigated by using Rényi entropy. It has been f…
Emergent Phase, Thermodynamic Geometry and Criticality of Charged Black Holes from Rényi Statistics
Ekapong Hirunsirisawat, Ratchaphat Nakarachinda, Chatchai Promsiri
Recently, a novel emergent phase can occur from thermodynamic consideration of the asymptotically flat Reissner-Nordström black hole (RN-AF) using Rényi statistics. We present an a…
Holographic Dark Energy from the Anti-de Sitter Black Hole
Ratchaphat Nakarachinda, Chakrit Pongkitivanichkul, Daris Samart +2
The anti-de Sitter (AdS) black hole plays an important role in the holographic principle. In this study, the upper bound in energy corresponding to the mass of the Schwarzschild bl…
Thermodynamics of Black String from Rényi entropy in de Rham-Gabadadze-Tolley Massive Gravity Theory
Peerawat Sriling, Ratchaphat Nakarachinda, Pitayuth Wongjun
The de Rham-Gabadadze-Tolley (dRGT) black string solution is a cylindrically symmetric and static solution of the Einstein field equation with graviton mass term. For the asymptoti…
Effective thermodynamical system of Schwarzschild-de Sitter black holes from Rényi statistics
Ratchaphat Nakarachinda, Ekapong Hirunsirisawat, Lunchakorn Tannukij +1
It has been known that the Schwarzschild-de Sitter (Sch-dS) black hole may not be in thermal equilibrium and also be found to be thermodynamically unstable in the standard black ho…
Quasinormal modes of a massless Dirac field in de Rham-Gabadadze-Tolley massive gravity
Pitayuth Wongjun, Chun-Hung Chen, Ratchaphat Nakarachinda
The quasinormal modes of a massless Dirac field in the de Rham-Gabadadze-Tolley (dRGT) massive gravity theory with asymptotically de Sitter spacetime are investigated using the Wen…
Cosmological model due to dimensional reduction of higher-dimensional massive gravity theory
Ratchaphat Nakarachinda, Pitayuth Wongjun
We investigate a cosmological model resulting from a dimensional reduction of the higher-dimensional dRGT massive gravity. By using the Kaluza-Klein dimensional reduction, we obtai…