45 citations · 230 across the 25 of their papers we have counts for
11 papers · 1 filter
Dyonic black hole degeneracies in string theory from Dabholkar-Harvey degeneracies
Abhishek Chowdhury, Abhiram Kidambi, Sameer Murthy +2
The degeneracies of single-centered dyonic -BPS black holes (BH) in Type II string theory on K3 are known to be coefficients of certain mock Jacobi forms arisi…
On interpolating anomalous dimension of twist-two operators with general spins
Aritra Banerjee, Abhishek Chowdhury, Somyadip Thakur +1
We study non-perturbative interpolating functions to probe the physics of anomalous dimensions associated with twist-two operators in SYM of finite and infinite spin.…
On Mathieu moonshine and Gromov-Witten invariants
Andreas Banlaki, Abhishek Chowdhury, Abhiram Kidambi +1
We show that a large number of manifolds are involved in an intricate way in Mathieu moonshine viz. their Gromov--Witten invariants are related to the expansion coefficients…
Scaling limits of dS vacua and the swampland
Andreas Banlaki, Abhishek Chowdhury, Christoph Roupec +1
We discuss the properties of massive type IIA flux compactifications. In particular, we investigate in which case one can obtain dS vacua at large volume and small coupling. We sup…
Calabi-Yau manifolds and sporadic groups
Andreas Banlaki, Abhishek Chowdhury, Abhiram Kidambi +3
A few years ago a connection between the elliptic genus of the K3 manifold and the largest Mathieu group M was proposed. We study the elliptic genera for Calabi-Yau manifold…
S-duality invariant perturbation theory improved by holography
Abhishek Chowdhury, Masazumi Honda, Somyadip Thakur
We study anomalous dimensions of unprotected low twist operators in the four-dimensional supersymmetric Yang-Mills theory. We construct a class of interpola…
Do All BPS Black Hole Microstates Carry Zero Angular Momentum?
Abhishek Chowdhury, Richard S. Garavuso, Swapnamay Mondal +1
From the analysis of the near horizon geometry and supersymmetry algebra it has been argued that all the microstates of single centered BPS black holes with four unbroken supersymm…
BPS State Counting in N=8 Supersymmetric String Theory for Pure D-brane Configurations
Abhishek Chowdhury, Richard S. Garavuso, Swapnamay Mondal +1
Exact results for the BPS index are known for a class of BPS dyons in type II string theory compactified on a six dimensional torus. In this paper we set up the problem of counting…
Logarithmic Corrections to Twisted Indices from the Quantum Entropy Function
Abhishek Chowdhury, Rajesh Kumar Gupta, Shailesh Lal +2
We compute logarithmic corrections to the twisted index in four-dimensional and string theories using the framework of the Quantum Entropy F…
Phase Structure of Higher Spin Black Holes
Abhishek Chowdhury, Arunabha Saha
We revisit the study of the phase structure of higher spin black holes carried out in arXiv using the "canonical formalism". In particular we study the low as well as h…
Black Hole Bound State Metamorphosis
Abhishek Chowdhury, Shailesh Lal, Arunabha Saha +1
N=4 supersymmetric string theories contain negative discriminant states whose numbers are known precisely from microscopic counting formulae. On the macroscopic side, these results…