Computing the Spectrum of a Heterotic Flux Vacuum

Abstract

We compute the massless spectra of a set of flux vacua of the heterotic string. The vacua we study include well-known non-Kahler T^2-fibrations over K3 with SU(3) structure and intrinsic torsion. Following gauged linear sigma models of these vacua into phases governed by asymmetric Landau-Ginzburg orbifolds allows us to compute the spectrum using generalizations of familiar LG-orbifold techniques. We study several four- and six-dimensional examples with N=2 spacetime supersymmetry in detail.

1+49 pages, updated to JHEP version (added appendix and minor revisions)

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• Heterotic Sigma Models with N=2 Space-Time Supersymmetry
• Gauge/Gravity Duality in Heterotic String Theory
• Gauge Threshold Corrections for N = 2 Heterotic Local Models with Flux, and Mock Modular Forms
• T-Duality in Gauged Linear Sigma-Models with Torsion
• Dressed elliptic genus of heterotic compactifications with torsion and general bundles
• Decomposition and the Gross-Taylor string theory
• New supersymmetric index of heterotic compactifications with torsion
• Threshold corrections in heterotic flux compactifications
• A survey of recent developments in GLSMs