212 citations · 1.3k across the 63 of their papers we have counts for
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Holography in de Sitter and anti-de Sitter Spaces and Gel'fand Graev Radon transform
Samrat Bhowmick, Koushik Ray, Siddhartha Sen
Bulk reconstruction formulas similar to HKLL are obtained for de Sitter and anti-de Sitter spaces as the inverse Gel'fand Graev Radon transform. While these generalize our previous…
Bulk reconstruction in AdS and Gel'fand-Graev-Radon Transform
Samrat Bhowmick, Koushik Ray, Siddhartha Sen
The bulk reconstruction formula for a Euclidean anti-de Sitter space is directly related to the inverse of the Gel'fand-Graev-Radon transform. Correlation functions of a conformal…
Effect of topological defects and Coulomb charge on the low energy quantum dynamics of gapped graphene
Baishali Chakraborty, Kumar S. Gupta, Siddhartha Sen
We study the combined effect of a conical topological defect and a Coulomb charge impurity on the dynamics of Dirac fermions in gapped graphene. Beyond a certain strength of the Co…
The Central Charge of the Warped AdS^3 Black Hole
Kumar S. Gupta, E. Harikumar, Siddhartha Sen +1
The AdS/CFT conjecture offers the possibility of a quantum description for a black hole in terms of a CFT. This has led to the study of general AdS^3 type black holes with a view t…
Geometric Finiteness, Holography and Quasinormal Modes for the Warped AdS_3 Black Hole
Kumar S. Gupta, E. Harikumar, Siddhartha Sen +1
We show that there exists a precise kinematical notion of holography for the Euclidean warped black hole. This follows from the fact that the Euclidean warped black…
Bound States in Gapped Graphene with Impurities : Effective Low-Energy Description of Short-Range Interactions
Kumar S. Gupta, Siddhartha Sen
We obtain a novel bound state spectrum of the low energy excitations near the Fermi points of graphene in the presence of a charge impurity. The effects of possible short range int…