D-branes in generalized geometry and Dirac-Born-Infeld action

T. Asakawa, S. Sasa, S. Watamura

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)


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.

Original languageEnglish
Article number64
JournalJournal of High Energy Physics
Issue number10
Publication statusPublished - 2012 Jan 1


  • D-branes
  • Differential and algebraic geometry
  • Space-time symmetries
  • Spontaneous symmetry breaking

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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