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Worldsheet instantons and (0,2) linear models
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DOI：10.1007/JHEP08(2015)081.png)
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摘要
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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 [1]. 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.
Keyword:
Superstrings and Heterotic Strings
Superstring Vacua
期刊
IF:
5.5
论文数:
4.0W
被引数:
13.7W
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