54 citations · 310 across the 20 of their papers we have counts for
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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…
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…
Memory Effect and BMS-like Symmetries for Impulsive Gravitational Waves
Srijit Bhattacharjee, Arpan Bhattacharyya, Shailesh Kumar
Cataclysmic astrophysical phenomena can produce impulsive gravitational waves that can possibly be detected by the advanced versions of present-day detectors in the future. Gluing…
Soldering freedom and BMS-like transformations
Srijit Bhattacharjee, Arpan Bhattacharyya
When two spacetimes are stitched across a null-shell placed at the horizon of a black hole BMS-supertranslation like soldering freedom arises if one demands the induced metric on t…
Internal Structure of Charged AdS Black Holes
Srijit Bhattacharjee, Sudipta Sarkar, Amitabh Virmani
When an electrically charged black hole is perturbed its inner horizon becomes a singularity, often referred to as the Poisson-Israel mass inflation singularity. Ori constructed a…
Entropy functionals and c-theorems from the second law
Srijit Bhattacharjee, Arpan Bhattacharyya, Sudipta Sarkar +1
We show that for a general four derivative theory of gravity, only the holographic entanglement entropy functionals obey the second law at linearized order in perturbations. We als…