Double field theory for double D-branes

Cecilia Albertsson*, Shou Huang Dai, Pei Wen Kao, Feng Li Lin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)


We consider Hull's doubled formalism for open strings on D-branes in flat space and construct the corresponding effective double field theory. We show that the worldsheet boundary conditions of the doubled formalism describe in a unified way a Tdual pair of D-branes, which we call double D-branes. We evaluate the one-loop beta function for the boundary gauge coupling and then obtain the effective field theory for the double D-branes. The effective field theory is described by a DBI action of double fields. The T-duality covariant form of this DBI action is thus a kind of "master" action, which describes all the double D-brane configurations related by T-duality transformations. We discuss a number of aspects of this effective theory.

Original languageEnglish
Article number25
JournalJournal of High Energy Physics
Issue number9
Publication statusPublished - 2011


  • Bosonic Strings
  • Conformal Field Models in String Theory
  • D-branes
  • String Duality

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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