Orbifolded Elliptic Genera of Non-Compact Models

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Hauptverfasser: Ashok, Sujay K., Troost, Jan
Format: Preprint
Veröffentlicht: 2024
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author Ashok, Sujay K.
Troost, Jan
author_facet Ashok, Sujay K.
Troost, Jan
contents We revisit the flavored elliptic genus of the N=2 superconformal cigar model and generalize the analysis of the path integral result to the case of real central charge. It gives rise to a non-holomorphic modular covariant function generalizing completed mock modular forms. We also compute the genus for angular orbifolds of the cigar and Liouville theory and decompose it in terms of discrete and continuous contributions. The orbifolded elliptic genus at fractional level is a completed mock modular form with a shadow related to U$(1)$ modular invariants at rational radius squared. We take the limit of the orbifolded genera towards a weighted ground state index and carefully interpret the contributions. We stress that the orbifold cigar and Liouville theories have a maximal and a minimal radius, respectively.
format Preprint
id arxiv_https___arxiv_org_abs_2405_08370
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Orbifolded Elliptic Genera of Non-Compact Models
Ashok, Sujay K.
Troost, Jan
High Energy Physics - Theory
We revisit the flavored elliptic genus of the N=2 superconformal cigar model and generalize the analysis of the path integral result to the case of real central charge. It gives rise to a non-holomorphic modular covariant function generalizing completed mock modular forms. We also compute the genus for angular orbifolds of the cigar and Liouville theory and decompose it in terms of discrete and continuous contributions. The orbifolded elliptic genus at fractional level is a completed mock modular form with a shadow related to U$(1)$ modular invariants at rational radius squared. We take the limit of the orbifolded genera towards a weighted ground state index and carefully interpret the contributions. We stress that the orbifold cigar and Liouville theories have a maximal and a minimal radius, respectively.
title Orbifolded Elliptic Genera of Non-Compact Models
topic High Energy Physics - Theory
url https://arxiv.org/abs/2405.08370