Worldsheet instantons and (0,2) linear models

Abstract

We study the stability of heterotic compactifications described by (0,2) gauged linear sigma models with respect to worldsheet instanton corrections to the space-time superpotential following the work of Beasley and Witten. We show that generic models elude the vanishing theorem proved there, and may not determine supersymmetric heterotic vacua. We then construct a subclass of linear models for which a vanishing theorem holds, generating an extensive list of consistent heterotic backgrounds.

21 pages; v2: minor corrections

References in corpus (5)

• Accidents in (0,2) Landau-Ginzburg theories
• Hybrid conformal field theories
• Elusive Worldsheet Instantons in Heterotic String Compactifications
• Rational Curves and (0,2)-Deformations
• Worldsheet Instantons and Torsion Curves

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• Eigenvalues and eigenforms on Calabi-Yau threefolds
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• New supersymmetric index of heterotic compactifications with torsion
• (0,2) hybrid models
• Bagger-Witten line bundles on moduli spaces of elliptic curves
• New Evidence for (0,2) Target Space Duality
• Testing the (0,2) mirror map
• A (0,2) mirror duality
• Anomalies and Holomorphy in Supersymmetric Chern-Simons-Matter Theories