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29 March 2024
 
  » arxiv » hep-th/0104164

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One-loop Correction of the Tachyon Action in Boundary Superstring Field Theory
Mohsen Alishahiha ;
Date 19 Apr 2001
Journal Phys.Lett. B510 (2001) 285-294
Subject hep-th
AbstractWe compute one-loop correction to the string field theory action of the tachyon for unstable D-branes in the framework of the boundary superstring field theory. We would expect that the one-loop correction comes from the partition function of the two-dimensional world-sheet theory on the annulus. The annulus correction suggests that the genus expansion is, somehow, governed by the effective string coupling defined in terms of the tachyon lambda=g_s exp(-T^2/4).
Source arXiv, hep-th/0104164
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