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Bibliographic Details
Main Authors: Bhand, Ajit, Sen, Ashoke, Singh, Ranveer Kumar
Format: Preprint
Published: 2025
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Online Access:https://arxiv.org/abs/2510.05219
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author Bhand, Ajit
Sen, Ashoke
Singh, Ranveer Kumar
author_facet Bhand, Ajit
Sen, Ashoke
Singh, Ranveer Kumar
contents 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. This function is obtained by subtracting, from the inverse of the Igusa cusp form, the generating function of the index of two centered black holes constructed from the Dedekind eta function. We also study the analytic properties of this function in the Siegel upper half plane.
format Preprint
id arxiv_https___arxiv_org_abs_2510_05219
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Generating Function of Single Centered Black Hole Index from the Igusa Cusp Form
Bhand, Ajit
Sen, Ashoke
Singh, Ranveer Kumar
High Energy Physics - Theory
Number Theory
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. This function is obtained by subtracting, from the inverse of the Igusa cusp form, the generating function of the index of two centered black holes constructed from the Dedekind eta function. We also study the analytic properties of this function in the Siegel upper half plane.
title Generating Function of Single Centered Black Hole Index from the Igusa Cusp Form
topic High Energy Physics - Theory
Number Theory
url https://arxiv.org/abs/2510.05219