engleski

Sigma models for genuinely non-geometric backgrounds

In this short note we advocate for the usefulness of generalized geometry and in particular of the Courant algebroid structure in addressing the issue of "non-geometry" in string theory. This mathematical framework allows for a unified description of gauge symmetries and diffeomorphisms and naturally incorporates background fluxes of string theory. Using these tools we propose an extension of known membrane sigma models which is suitable for the description of truly nongeometric backgrounds.

sigma models ; Courant algebroid ; fluxes

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