Twist Symmetry and Classical Solutions in Open String Field Theory

Details Twist Symmetry and Classical Solutions in Open String Field Theory Twist Symmetry and Classical Solutions in Open String Field Theory

2005-08-26

arxiv.org/abs/hep-th/0508196v2

JHEP 0510 (2005) 078

Physics

High Energy Physics

High Energy Physics - Theory

19 pages, 2 figures; v2: errors fixed

Scientific paper

10.1088/1126-6708/2005/10/078

We construct classical solutions of open string field theory which are not invariant under ordinary twist operation. From detailed analysis of the moduli space of the solutions, it turns out that our solutions become nontrivial at boundaries of the moduli space. The cohomology of the modified BRST operator and the CSFT potential evaluated by the level truncation method strongly support the fact that our nontrivial solutions correspond to the closed string vacuum. We show that the nontrivial solutions are equivalent to the twist even solution which was found by Takahashi and Tanimoto, and twist invariance of open string field theory remains after the shift of the classical backgrounds.

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