12 papers
Quantum Field Theory in Successive Rindler Spacetimes
Nitesh K. Dubey, Jaswanth Uppalapati, Sanved Kolekar
We study successive Rindler-like transformations in Minkowski spacetime and the corresponding sequence of vacuum states perceived by observers restricted to respective wedges. Exte…
Hawking-Page phase transition for pure Lovelock black holes
Nitesh K. Dubey, Sanved Kolekar
We investigate the thermodynamic properties of static, spherically symmetric Anti-de Sitter (AdS) black holes, focusing on the interplay between characteristic temperatures, as wel…
Stationary Stars Are Axisymmetric in Higher Curvature Gravity
Nitesh K. Dubey, Sanved Kolekar, Sudipta Sarkar
The final equilibrium stage of stellar evolution can result in either a black hole or a compact object such as a white dwarf or neutron star. In general relativity, both stationary…
Time delay as a probe of multiple photon spheres
Kajol Paithankar, Sanved Kolekar
Black hole shadow images are primarily determined by the properties of photon spheres and can exhibit degeneracies across different spherically symmetric spacetime geometries. We s…
Memory Effects and Entanglement Dynamics of Finite time Acceleration
Nitesh K. Dubey, Sanved Kolekar
We construct a smooth trajectory in Minkowski spacetime that is inertial in the asymptotic past and future but undergoes approximately uniform acceleration for a finite duration. I…
Kinematics of Acceleration-Induced Excitations in Confined Quantum Fields
Hemansh Shah, Sanved Kolekar
We investigate quantum field excitations in a rigid cavity that undergoes a transition from inertial motion to uniform acceleration while maintaining constant proper length. By con…