Tachyon condensation using the disc partition function

Abstract

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.

21 pages, refrences added, corrected some typos

Cited by in corpus (11)

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• Scattering of Gauge, Matter, and Moduli Fields from Intersecting Branes
• Tachyon Condensation and Background Independent Superstring Field Theory
• Spectral flow and boundary string field theory for angled D-branes
• Three- and Four-point correlators of excited bosonic twist fields
• Correlators of arbitrary untwisted operators and excited twist operators for N branes at angles
• Non-orientable Boundary Superstring Field theory with Tachyon field
• Canonical quantization of a string describing $N$ branes at angles
• ${\mathbb{Z}}_2$ boundary twist fields and the moduli space of D-branes
• Yukawa's of light stringy states
• Production of light stringy states