English

Gauge Invariant Overlaps for Classical Solutions in Open String Field Theory

High Energy Physics - Theory 2008-11-26 v3

Abstract

We calculate gauge invariant observables for Schnabl's solution with analytic method and with the level truncation approximation. We also compute them for the numerical solution initially obtained by Sen and Zwiebach in the level truncation approximation to compare with the one for Schnabl's solution. The results are consistent with the expectation that they may be gauge equivalent. We briefly discuss the gauge invariant observables and the action for a marginal solution with a nonsingular current.

Keywords

Cite

@article{arxiv.0804.1541,
  title  = {Gauge Invariant Overlaps for Classical Solutions in Open String Field Theory},
  author = {Teruhiko Kawano and Isao Kishimoto and Tomohiko Takahashi},
  journal= {arXiv preprint arXiv:0804.1541},
  year   = {2008}
}

Comments

33 pages, 5 figures, LaTeX; v2:typos corrected, references added; v3: improved numerical analysis in section 4

R2 v1 2026-06-21T10:29:20.684Z