Tachyon condensation using the disc partition function

Details Tachyon condensation using the disc partition function Tachyon condensation using the disc partition function

2000-12-11

arxiv.org/abs/hep-th/0012089v2

JHEP 0107:009,2001

Physics

High Energy Physics

High Energy Physics - Theory

21 pages, refrences added, corrected some typos

Scientific paper

10.1088/1126-6708/2001/07/009

It has been recently proposed that the background independent open superstring field theory action is given by the disc partition function with all possible open string operators inserted at the boundary of the disc. We use this proposal to study tachyon condensation in the D0-D2 system. We evaluate the disc partition function for the D0-D2 system in presence of a large Neveu-Schwarz B-field using perturbation theory. This perturbative expansion of the disc partition function makes sense as the boundary tachyon operator for the large Neveu-Schwarz B-field is almost marginal. We find that the mass defect for the formation of the D0-D2 bound state agrees exactly with the expected result in the large B-field limit.

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