Published February 2007 | Version v1
Journal article

Proof of vanishing cohomology at the tachyon vacuum

  • 1. Department of Physics, University of Wisconsin, Madison, WI 53706 (United States)
  • 2. Department of Physics, Theory Division, CERN, CH-1211, Geneva 23 (Switzerland)

Description

We prove Sen's third conjecture that there are no on-shell perturbative excitations of the tachyon vacuum in open bosonic string field theory. The proof relies on the existence of a special state A, which, when acted on by the BRST operator at the tachyon vacuum, gives the identity. While this state was found numerically in Feynman-Siegel gauge, here we give a simple analytic expression

Additional details

Publishing Information

Journal Title
Journal of High Energy Physics
Journal Volume
2
Journal Issue
2007
Journal Page Range
p. 096
ISSN
1126-6708