2 papers
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
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…