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arXiv · 1206.6964

D-branes in Generalized Geometry and Dirac-Born-Infeld Action

Tsuguhiko Asakawa·Shuhei Sasa·Satoshi Watamura
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Abstract

The purpose of this paper is to formulate the Dirac-Born-Infeld (DBI) action in a framework of generalized geometry and clarify its symmetry. A D-brane is defined as a Dirac structure where scalar fields and gauge field are treated on an equal footing in a static gauge. We derive generalized Lie derivatives corresponding to the diffeomorphism and B-field gauge transformations and show that the DBI action is invariant under non-linearly realized symmetries for all types of diffeomorphisms and B-field gauge transformations. Consequently, we can interpret not only the scalar field but also the gauge field on the D-brane as the generalized Nambu-Goldstone boson.

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Tsuguhiko Asakawa, Shuhei Sasa, Satoshi Watamura. 2012-07-19. D-branes in Generalized Geometry and Dirac-Born-Infeld Action. https://doi.org/10.1007/jhep10(2012)064

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