355 citations · 1.7k across the 51 of their papers we have counts for
52 papers
Hairy Black Holes: Non-existence of Short Hairs and Bound on Light Ring Size
Rajes Ghosh, Selim Sk, Sudipta Sarkar
Several hairy black hole solutions are known to violate the original version of the celebrated no-hair conjecture. This prompted the development of a new theorem that establishes a…
Hawking radiation from stationary black holes using gravitational anomaly
Selim Sk, Sudipta Sarkar
Among all the different techniques to derive the Hawking effect, the approach based on gravitational anomaly by Robinson and Wilczek provides a simple and satisfactory origin of th…
Does the speed of gravitational waves depend on the source velocity?
Rajes Ghosh, Sreejith Nair, Lalit Pathak +2
The second postulate of special relativity states that the speed of light in vacuum is independent of the emitter's motion. The test of this postulate so far remains unexplored for…
A characterization of MG Dual frames using infimum cosine angle
Sudipta Sarkar, Niraj K. Shukla
This article discusses the construction of dual frames and their uniqueness for the multiplication generated frames on , where is a -finite measure. A ne…
Reproducing formulas associated to translation generated systems on Nilpotent Lie Groups
Sudipta Sarkar, Niraj K. Shukla
Let be a connected, simply connected, nilpotent Lie group whose irreducible unitary representations are square-integrable modulo the center. We obtain characterization results…
Quantum Gravity Fluctuations in the Timelike Raychaudhuri Equation
Sang-Eon Bak, Maulik Parikh, Sudipta Sarkar +1
We consider a timelike geodesic congruence in the presence of perturbative quantum fluctuations of the spacetime metric. We calculate the change in the volume of a bundle of geodes…