28 citations · 59 across the 8 of their papers we have counts for
10 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-Nordström black hole near extremality and investigate the…
Logarithmic corrections to the entropy of near-extremal rotating black holes
Nabamita Banerjee, Koustubh Guha, Muktajyoti Saha
An interesting feature of quantum corrections to the Bekenstein--Hawking entropy is the appearance of logarithmic area terms, whose coefficients are governed by the spectrum of mas…
Logarithm of charge ratio in black hole entropy
Muktajyoti Saha, Ashoke Sen, P. Shanmugapriya
Logarithmic correction to BPS black hole entropy, computed from microscopic description, often contains terms involving large ratios of charges, besides the logarithmic terms invol…
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…
Logarithmic corrections for near-extremal black holes
Nabamita Banerjee, Muktajyoti Saha, Suthanth Srinivasan
We present the computation of logarithmic corrections to near-extremal black hole entropy from one-loop Euclidean gravity path integral around the near-horizon geometry. We extract…
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…
Revisiting Leading Quantum Corrections to Near Extremal Black Hole Thermodynamics
Nabamita Banerjee, Muktajyoti Saha
Computing the 4D Euclidean path integral to one-loop order we find the large quantum corrections that govern the behavior of a spherically symmetric non-supersymmetric near-extrema…
JT gravity from holographic reduction of 3D asymptotically flat spacetime
Arindam Bhattacharjee, Muktajyoti Saha
We attempt to understand the CFT structure underlying (2+1)D gravity in flat spacetime via dimensional reduction. We observe that under superrotation, the hyperbolic (and dS$_2…
Equivalence of JT Gravity and Near-extremal Black Hole Dynamics in Higher Derivative Theory
Nabamita Banerjee, Taniya Mandal, Arnab Rudra +1
Two derivative Jackiw Teitelboim gravity theory captures the near horizon dynamics of higher dimensional near extremal black holes, which is governed by a Schwarzian action at the…