Comments on Gauge Invariant Overlaps for Marginal Solutions in Open String Field Theory
Abstract
We calculate the gauge invariant overlaps for Schnabl/Kiermaier-Okawa-Rastelli-Zwiebach's marginal solution with nonsingular current. The obtained formula is the same as that for Fuchs-Kroyter-Potting/Kiermaier-Okawa's marginal solution, which was already computed by Ellwood. Our result is consistent with the expectation that these two solutions may be gauge equivalent. We also comment on a gauge invariant overlap for rolling tachyon solutions in cubic open string field theory.
- Publication:
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Progress of Theoretical Physics
- Pub Date:
- November 2008
- DOI:
- 10.1143/PTP.120.875
- arXiv:
- arXiv:0808.0355
- Bibcode:
- 2008PThPh.120..875K
- Keywords:
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- High Energy Physics - Theory
- E-Print:
- 12 pages