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arxiv: hep-th/0412220 · v1 · submitted 2004-12-19 · ✦ hep-th

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Heterotic strings on homogeneous spaces

Dan Israel , Costas Kounnas , Domenico Orlando , P.Marios Petropoulos
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classification ✦ hep-th
keywords constructfieldfluxesheterotichomogeneousspacesstringalready
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We construct heterotic string backgrounds corresponding to families of homogeneous spaces as exact conformal field theories. They contain left cosets of compact groups by their maximal tori supported by NS-NS 2-forms and gauge field fluxes. We give the general formalism and modular-invariant partition functions, then we consider some examples such as SU(2)/U(1) ~ S^2 (already described in a previous paper) and the SU(3)/U(1)^2 flag space. As an application we construct new supersymmetric string vacua with magnetic fluxes and a linear dilaton.

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