3 papers
gr-qc2026
Bounds on the Lyapunov Exponent of Circular Null Orbits in -Dimensional Black-Hole Spacetimes
Anagha V., C. Fairoos, T. K. Safir
Unstable circular null orbits provide a geometric bridge between black-hole optics, photon rings, strong gravitational lensing, and the eikonal sector of quasinormal ringing. In fo…
gr-qc2024
Thermodynamics of Einstein-Gauss-Bonnet Black Holes and Ensemble-averaged Theory
Md Sabir Ali, C. Fairoos, C. L. Ahmed Rizwan +2
In this paper, using the ensemble-averaged theory, we define the thermodynamic free energy of Einstein-Gauss-Bonnet (EGB) black holes in anti-de Sitter (AdS) spacetime. This approa…
gr-qc2024
Phase-space Path Integral Approach to the Kinetics of Black Hole Phase Transition in Massive Gravity
C. Fairoos, T. K. Safir, Deepak Mishra
The dynamics of the state-switching process of black holes in dRGT massive gravity theory is presented using free energy landscape and stochastic Langevin equations. The free energ…