On the space of elliptic genera
Jan Manschot

TL;DR
This paper develops a method to analyze the constraints on the polar spectra of certain superconformal field theories using elliptic genera, with implications for AdS_3/CFT_2 correspondence and topologically twisted Yang-Mills.
Contribution
It introduces a technique to compute the number of spectral constraints from elliptic genera, applicable to N=(2,2), N=(4,0) SCFTs and topologically twisted Yang-Mills theories.
Findings
Calculated the dimension of elliptic genus space as coefficients minus constraints.
Identified bounds on polar spectra related to cosmic censorship in gravity.
Applied the method to N=4 topologically twisted Yang-Mills on CP^2.
Abstract
Invariance under modular transformations and spectral flow restrict the possible spectra of superconformal field theories (SCFT). This paper presents a technique to calculate the number of constraints on the polar spectra of N=(2,2) and N=(4,0) SCFT's by analyzing the elliptic genus. The polar spectrum corresponds to the principal part of a Laurent expansion derived from the elliptic genus. From the point of view of the AdS_3/CFT_2 correspondence, these are the states which lie below the cosmic censorship bound in classical gravity. The dimension of the space of elliptic genera is obtained as the number of coefficients of the principal part minus the number of constraints. As an additional illustration of the technique, the constraints on the spectrum of N=4 topologically twisted Yang-Mills on CP^2 are discussed.
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Taxonomy
TopicsBlack Holes and Theoretical Physics · Cosmology and Gravitation Theories · Particle physics theoretical and experimental studies
