39 citations · 76 across the 13 of their papers we have counts for
13 papers
S-matrices in the holomorphic modular bootstrap approach
Suresh Govindarajan, Aditya Jain, Akhila Sadanandan +1
We numerically determine the S-matrix by using connection formulae in the modular linear differential equation (MLDE) approach to the holomorphic modular bootstrap. We then determi…
Elliptic curves in game theory
Abhiram Kidambi, Elke Neuhaus, Irem Portakal
We investigate Spohn curves, the algebro-geometric models of totally mixed dependency equilibria for normal-form games. These curves arise as the intersection of two q…
Notes on Characterizations of 2d Rational SCFTs: Algebraicity, Mirror Symmetry and Complex Multiplication
Abhiram Kidambi, Masaki Okada, Taizan Watari
These notes combine results from two papers by the present authors viz., Part I (arXiv:2205.10299) and Part II (arXiv:2212.13028) into one streamlined version for better readabilit…
Generalized Narain Theories Decoded: Discussions on Eisenstein series, Characteristics, Orbifolds, Discriminants and Ensembles in any Dimension
Meer Ashwinkumar, Abhiram Kidambi, Jacob M. Leedom +1
We study a class of newly-introduced CFTs associated with even quadratic forms of general signature, which we call generalized Narain theories. We first summarize the properties of…
Towards Hodge Theoretic Characterizations of 2d Rational SCFTs: II
Masaki Okada, Taizan Watari
A characterization of rational superconformal field theories (SCFTs) on 1+1 dimensions with Ricci-flat Kahler targets was proposed by S. Gukov and C. Vafa in terms of the Hodge str…
The gravitational path integral for BPS black holes from black hole microstate counting
Gabriel Lopes Cardoso, Abhiram Kidambi, Suresh Nampuri +2
We use the exact degeneracy formula of single-centred BPS dyonic black holes with unit torsion in 4D toroidally compactified heterotic string theory to improve on t…
Octonionic Magical Supergravity, Niemeier Lattices, and Exceptional and Hilbert Modular Forms
Murat Gunaydin, Abhiram Kidambi
We study the quantum degeneracies of BPS black holes of octonionic magical supergravity in five dimensions that is defined by the exceptional Jordan algebra. We define the quantum…
Towards Hodge Theoretic Characterizations of 2d Rational SCFTs
Abhiram Kidambi, Masaki Okada, Taizan Watari
The study of rational conformal field theories in the moduli space is of particular interest since these theories correspond to points in moduli space where the algebraic and arith…
Chern-Simons Invariants from Ensemble Averages
Meer Ashwinkumar, Matthew Dodelson, Abhiram Kidambi +2
We discuss ensemble averages of two-dimensional conformal field theories associated with an arbitrary indefinite lattice with integral quadratic form . We provide evidence that…
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…
Heterotic strings on and their dual Calabi-Yau threefolds
Andreas Banlaki, Aradhita Chattopadhyaya, Abhiram Kidambi +2
In this paper we study compactifications of the heterotic string on with various gauge backgrounds and calculate the topo…
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…
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…