54 citations · 310 across the 20 of their papers we have counts for
23 papers
Soft Theorems and Memory Effects at Finite Temperatures
Divyesh N. Solanki, Srijit Bhattacharjee
We study the soft theorems for photons and gravitons at finite temperatures using the thermofield dynamics approach. The soft factors lose universality at finite temperatures as th…
Slowly evolving horizons in Einstein gravity and beyond
Ayon Tarafdar, Srijit Bhattacharjee
We study event horizon candidates for slowly evolving dynamical black holes in General Relativity and Einstein-Gauss-Bonnet (EGB) gravity. Such a type of horizon candidate has been…
Can we detect a supertranslated black hole?
Subhodeep Sarkar, Shailesh Kumar, Srijit Bhattacharjee
We attempt to address the question of whether standard tests of general relativity can detect the presence of a black hole carrying a supertranslation field. In this regard, we stu…
Scalar perturbations of black holes in Jackiw-Teitelboim gravity
Srijit Bhattacharjee, Subhodeep Sarkar, Arpan Bhattacharyya
We study linear scalar perturbations of black holes in two-dimensional (2D) gravity models with a particular emphasis on Jackiw-Teitelboim (JT) gravity. We obtain an exact expressi…
Displacement memory effect near the horizon of black holes
Srijit Bhattacharjee, Shailesh Kumar, Arpan Bhattacharyya
We study the displacement memory effect and its connection with the extended-BMS symmetries near the horizon of black holes. We show there is a permanent shift in the geodesic devi…
Memory effect and BMS symmetries for extreme black holes
Srijit Bhattacharjee, Shailesh Kumar
We study horizon shells and soldering freedom for extreme black holes and how supertranslation-like Bondi-Metzner-Sachs (BMS) symmetries appear as soldering transformations. Furthe…