Dirac-Born-Infeld action




The Green-Schwarz action functional for super D-branes contains a generalizatin of the Nambu-Goto action in which the volume form is modified by the field strength of the Chan-Paton gauge field on the worldvolume of the D-brane. This modified Nambu-Goto action is referred to as the Dirac-Born-Infeld action or DBI action, for short.



Named after Paul Dirac, Max Born and Leopold Infeld.

Detailed discussion of the relation to the Polyakov action and the Nambu-Goto action is in

For single D-branes

In the low energy action functional for single D-branes the DBI action is due to

and a full κ\kappa-symmetric Green-Schwarz sigma-model for D-branes:


Discussion in terms of D-branes as leaves of Dirac structures on Courant Lie 2-algebroids of type II geometry is in

  • Tsuguhiko Asakawa, Shuhei Sasa, Satoshi Watamura, D-branes in Generalized Geometry and Dirac-Born-Infeld Action (arXiv:1206.6964)

See also

  • Martin Cederwall, Alexander von Gussich, Aleksandar Mikovic, Bengt Nilsson, Anders Westerberg, On the Dirac-Born-Infeld Action for D-branes, Phys.Lett.B390:148-152, 1997 (arXiv:hep-th/9606173)

  • Ian I. Kogan, Dimitri Polyakov, DBI Action from Closed Strings and D-brane second Quantization, Int. J. Mod. Phys. A18 (2003) 1827 (arXiv:hep-th/0208036)

For coincident (non-abelian) D-branes

Discussion of the generalization of the DBI action to non-abelian Chan-Paton gauge fields (hence: for coincident D-branes) includes the following:

A proposal for the formulation appears in

  • Arkady Tseytlin, On non-Abelian generalization of Born-Infeld action in string theory, Nucl.Phys. B501 (1997) 41-52 (spire)

A critical discussion is in Schwarz 01, Section 2

For actual derivation of gauge enhancement on coincident D-branes see the references there.

Last revised on July 30, 2019 at 09:38:26. See the history of this page for a list of all contributions to it.