paper

Defects, Non-abelian T-duality, and the Fourier-Mukai transform of the Ramond-Ramond fields

arXiv:1310.1264 · doi:10.1007/JHEP03(2014)035

Abstract

We construct topological defects generating non-abelian T-duality for isometry groups acting without isotropy. We find that these defects are given by line bundles on the correspondence space with curvature which can be considered as a non-abelian generalization of the curvature of the Poincarè bundle. We show that the defect equations of motion encode the non-abelian T-duality transformation. The Fourier-Mukai transform of the Ramond-Ramond fields generated by the gauge invariant flux of these defects is studied. We show that it provides elegant and compact way of computation of the transformation of the Ramond-Ramond fields under the non-abelian T-duality.

18 pages, minor typos corrected, references added

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