248 citations · 1.3k across the 49 of their papers we have counts for
51 papers
Dynamical friction on black holes in scalar field environment
Adith Praveen, Dawood Kothawala
Astrophysical black holes exist within non-vacuum environments, and their motion through these environments generically result in a force on these black holes through processes suc…
Quantum nature of gravity and spacetime: Fundamental insights from the Hoyle-Narlikar theory
Dawood Kothawala
The Hoyle-Narlikar action-at-a-distance formulation for gravity remains one of the most mathematically rigorous attempts to incorporate Mach principle into physics. A lesser known,…
When the Ringing Stops: Purely Imaginary Modes in the Ringdown Spectrum of Dynamical Black Holes
Lodovico Capuano, Thomas Lovo, Gorka Prieto-Varela +4
We extend the frequency-domain analysis of quasinormal modes in a dynamical, spherically symmetric black hole spacetime undergoing constant-rate mass evolution. In particular, we r…
Twin-paradox and Entanglement
K. Hari, Subhajit Barman, Dawood Kothawala
We study the quantum version of the classical twin paradox in special relativity by replacing the twins with quantum detectors, and studying the transitions and entanglement induce…
Geodesic structure of spacetime near singularities
Mayank, Dawood Kothawala
Geodesic flows emanating from an arbitrary point in a manifold carry important information about the geometric properties of . These flows…
Entanglement between accelerated probes in a de Sitter spacetime
Mayank, K. Hari, Subhajit Barman +1
We initiate an investigation into features of vacuum entanglement as probed by accelerated quantum probes in curved spacetime. Focussing specifically on de Sitter (dS) spacetime wi…