Tachyon condensation and universality of DBI action

Arutyunov, Gleb; Theisen, Stefan; Frolov, Sergey; Tseytlin, Arkady A.

doi:10.1088/1126-6708/2001/02/002

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Tachyon condensation and universality of DBI action

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Arutyunov, Gleb
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Theisen, Stefan
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Arutyunov, G., Theisen, S., Frolov, S., & Tseytlin, A. A. (2001). Tachyon condensation and universality of DBI action. Journal of High Energy Physics, 2001(2): 002. doi:10.1088/1126-6708/2001/02/002.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-5685-1

Abstract

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.