4 papers
Quantum Love and ringdown near extremality
Arindam Bhattacharjee, Muktajyoti Saha, M. V. S. Saketh
In this paper we discuss the quasinormal modes and the tidal responses of a four-dimensional asymptotically flat Reissner-Nördstrom black hole near extremality and investigate the…
Quantum evolution of de Sitter black holes near extremality
Arindam Bhattacharjee, Muktajyoti Saha
We study the evolution of charged, asymptotically de Sitter black holes close to the cold extremal branch of the phase space. We consider black hole sizes that are parametrically s…
Logarithmic corrections to entropy of 3D cosmological solutions from celestial dual
Arindam Bhattacharjee, Shruti Menon, Muktajyoti Saha
Recently a one-dimensional Schwarzian type theory was proposed as an effective dual theory of pure gravity in (2+1) dimensional asymptotically flat spacetimes \cite{Bhattacharjee:2…
Entropy of Flat Space Cosmologies from Celestial dual
Arindam Bhattacharjee, Muktajyoti Saha
We construct a one-dimensional dual theory that effectively describes the sector of the (2+1)D flat gravity phase space near a Flat Space Cosmology (FSC) saddle labeled by definite…