Tachyon condensation and universality of DBI action

Details Tachyon condensation and universality of DBI action Tachyon condensation and universality of DBI action

2000-12-08

arxiv.org/abs/hep-th/0012080v2

JHEP 0102:002,2001

Physics

High Energy Physics

High Energy Physics - Theory

LaTex, 15 p. v2: references added

Scientific paper

10.1088/1126-6708/2001/02/002

We show that a low-energy action for massless fluctuations around a tachyonic soliton background representing a codimension one D-brane coincides with the Dirac-Born-Infeld action. The scalar modes which describe transverse oscillations of the D-brane are translational collective coordinates of the soliton. The appearance of the DBI action is a universal feature independent of details of a tachyon effective action, provided it has the structure implied by the open string sigma model partition function.

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