activity
20232026
most citedNon-Chiral Vertex Operator Algebra Associated To Lorentzian Lattices And Narain CFTs

5 citations · 10 across the 12 of their papers we have counts for

collaborators

13 papers

hep-th2026

SU() QCD, four-manifolds and Segre numbers

Elias Furrer, Ranveer Kumar Singh

We study correlation functions of topologically twisted supersymmetric QCD with gauge group on a compact four-manifold . We derive the Coulomb br…

hep-th2026

A Comment On Topological Degeneracy In Gauged WZW Models

Gregory W. Moore, Eliezer Rabinovici, Ranveer Kumar Singh

Given a Lie group , a level , and a Lie subgroup one can construct 2d conformal field theories by either 1.) gauging a nonanomalous symmetry of the WZW model construc…

hep-th2026

Generating Function of single-centered Black Hole Index in CHL Models

Ranveer Kumar Singh

We present the construction of the generating function of single-centered black hole index in general CHL models. This is done by subtracting from the index of quart…

hep-th2025

Macdonald Index From Refined Kontsevich-Soibelman Operator

George Andrews, Anindya Banerjee, Ranveer Kumar Singh +1

We propose a refinement of the Kontsevich-Soibelman operator for a class of ``special'' 4d superconformal field theories characterized by the following conditions:…

hep-th2025

Generating Function of Single Centered Black Hole Index from the Igusa Cusp Form

Ajit Bhand, Ashoke Sen, Ranveer Kumar Singh

We introduce manifestly duality invariant generating function of the index of single centered black holes in the heterotic string theory compactified on a six dimensional torus. Th…

hep-th2025

Argyres-Douglas Theories, Macdonald Indices and Arc Space of Zhu Algebra

George Andrews, Anindya Banerjee, Chinmaya Bhargava +2

In this paper, we relate the MacDonald index of a 4d SCFT with the Hilbert series of the arc space of the Zhu algebra of the corresponding Schur VOA. Using this, we…

hep-th2025

Mock Modularity Of Twisted Index In CHL Models

Nabamita Banerjee, Vedant Bhutra, Ranveer Kumar Singh

We study the twisted partition function of quarter BPS states in CHL models and show that for a large class of single-centered black holes, the degeneracy of microstates is given b…

hep-th2024

Topological Twisting of 4d Supersymmetric Field Theories

Gregory W. Moore, Vivek Saxena, Ranveer Kumar Singh

We discuss what topological data must be provided to define topologically twisted partition functions of four-dimensional supersymmetric field theories. The origina…

hep-th2024

Rationality of Lorentzian Lattice CFTs And The Associated Modular Tensor Category

Ranveer Kumar Singh, Madhav Sinha, Runkai Tao

We classify the irreducible modules of a rational Lorentzian lattice vertex operator algebra (LLVOA) based on an even, self-dual Lorentzian lattice of si…

hep-th2024★ 2 cited

Algebraic Structures In Closed Superstring Field Theory, Homotopy Transfer And Effective Actions

Ranveer Kumar Singh

A consistent action for heterotic and type II superstring field theory was recently proposed by Sen. We give an algebraic formulation of this action in terms of certain twisted $L_…

hep-th2023★ 5 cited

Non-Chiral Vertex Operator Algebra Associated To Lorentzian Lattices And Narain CFTs

Ranveer Kumar Singh, Madhav Sinha

Frenkel, Lepowsky, and Meurman constructed a vertex operator algebra (VOA) associated to any even, integral, Euclidean lattice. In the language of physics, these are examples of ch…

hep-th2023★ 3 cited

Mock Modularity In CHL Models

Ajit Bhand, Ashoke Sen, Ranveer Kumar Singh

Dabholkar, Murthy and Zagier (DMZ) proved that there is a canonical decomposition of a meromorphic Jacobi form of integral index for with poles on tors…

hep-th2023

Beauty And The Beast Part 2: Apprehending The Missing Supercurrent

Gregory W. Moore, Ranveer Kumar Singh

The Moonshine module is a conformal field theory (CFT) whose automorphism group is the Monster group. It was argued by Dixon, Ginsparg, and Harvey in \cite{Dixon:1988qd} tha…