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arXiv · hep-th/0504041

Dirac actions for D-branes on backgrounds with fluxes

Luca Martucci·Jan Rosseel·Dieter Van den Bleeken·Antoine Van Proeyen
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Abstract

The understanding of the fermionic sector of the worldvolume D-brane dynamics on a general background with fluxes is crucial in several branches of string theory, like for example the study of nonperturbative effects or the construction of realistic models living on D-branes. In this paper we derive a new simple Dirac-like form for the bilinear fermionic action for any Dp-brane in any supergravity background, which generalizes the usual Dirac action valid in absence of fluxes. A nonzero world-volume field strength deforms the usual Dirac operator in the action to a generalized non-canonical one. We show how the canonical form can be re-established by a redefinition of the world-volume geometry.

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Luca Martucci, Jan Rosseel, Dieter Van den Bleeken, Antoine Van Proeyen. 2005-04-05. Dirac actions for D-branes on backgrounds with fluxes. https://doi.org/10.1088/0264-9381%2F22%2F13%2F014

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