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          Institute: MPI für Gravitationsphysik     Collection: Quantum Gravity and Unified Theories     Display Documents



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ID: 429151.0, MPI für Gravitationsphysik / Quantum Gravity and Unified Theories
(0,2) Landau-Ginzburg Models and Residues
Authors:Melnikov, Ilarion V.
Date of Publication (YYYY-MM-DD):2009
Title of Journal:Journal of High Energy Physics
Volume:09
Sequence Number of Article:118
Review Status:not specified
Audience:Not Specified
Abstract / Description:We study the topological heterotic ring in (0,2) Landau-Ginzburg models without a (2,2) locus. The ring elements correspond to elements of the Koszul cohomology groups associated to a zero-dimensional ideal in a polynomial ring, and the computation of half-twisted genus zero correlators reduces to a map from the first non-trivial Koszul cohomology group to complex numbers. This map is a generalization of the local Grothendieck residue. The results may be applied to computations of Yukawa couplings in a heterotic compactification at a Landau-Ginzburg point.
External Publication Status:published
Document Type:Article
Communicated by:Hermann Nicolai
Affiliations:MPI für Gravitationsphysik/Quantum Gravity and Unified Theories
Identifiers:LOCALID:arXiv:0902.3908
DOI:10.1088/1126-6708/2009/09/118
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