4 papers · 1 filter
Stochastic Evolution of Primordial Black Holes to near-extremality in EFTs of Gravity
Soham Acharya, Shuvayu Roy, Sudipta Sarkar
The search for dark matter candidates includes primordial black holes (PBHs) as possible constituents. Recent studies show that some PBHs can survive to the present epoch by gainin…
Effect of ultralight dark matter on compact binary mergers
Kabir Chakravarti, Soham Acharya, Sumanta Chakraborty +1
The growing catalogue of gravitational wave events enables a statistical analysis of compact binary mergers, typically quantified by the merger rate density. This quantity can be i…
EFT Corrections to Majumdar-Papapetrou Black Holes
Soham Acharya, Shuvayu Roy, Sudipta Sarkar
Recent studies on extremal black holes within effective field theories (EFT) of gravity have revealed an intriguing phenomenon: tidal forces near the horizon experience significant…
Non-existence of short hairs for static black holes
Soham Acharya, Sudipta Sarkar
The black hole no-short hair theorem establishes a universal lower bound on the extension of hairs outside any 4-dimensional spherically symmetric black hole solutions. We generali…