163 citations · 1.5k across the 38 of their papers we have counts for
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Counting black hole microscopic states in loop quantum gravity
A. Ghosh, P. Mitra
Counting of microscopic states of black holes is performed within the framework of loop quantum gravity. This is the first calculation of the pure horizon states using statistical…
Black hole entropy calculations based on symmetries
Olaf Dreyer, Amit Ghosh, Jacek Wisniewski
Symmetry based approaches to the black hole entropy problem have a number of attractive features; in particular they are very general and do not depend on the details of the quanti…
Statistical Entropy of Schwarzschild Black Strings and Black Holes
Saurya Das, Amit Ghosh, P. Mitra
The statistical entropy of a Schwarzschild black string in five dimensions is obtained by counting the black string states which form a representation of the near-horizon conformal…
Pre-Big Bang Cosmology and Quantum Fluctuations
A. Ghosh, G. Pollifrone, G. Veneziano
The quantum fluctuations of a homogeneous, isotropic, open pre-big bang model are discussed. By solving exactly the equations for tensor and scalar perturbations we find that parti…
QED_2 in Curved Backgrounds
Amit Ghosh
Here we discuss the two dimensional quantum electrodynamics in curved space-time, especially in the background of some black holes. We first show the existence of some new quantum…
S-DUALITY AND THE ENTROPY OF BLACK HOLES IN HETEROTIC STRING THEORY
Amit Ghosh, Jnanadeva Maharana
Four dimensional heterotic string effective action is known to admit non-rotating electrically and magnetically charged black hole solutions. It is shown that the partition functio…