Comments on Gauge Invariant Overlaps for Marginal Solutions in Open String Field Theory
Abstract
We calculate the gauge invariant overlaps for Schnabl/KiermaierOkawaRastelliZwiebach's marginal solution with nonsingular current. The obtained formula is the same as that for FuchsKroyterPotting/KiermaierOkawa'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:

Progress of Theoretical Physics
 Pub Date:
 November 2008
 DOI:
 10.1143/PTP.120.875
 arXiv:
 arXiv:0808.0355
 Bibcode:
 2008PThPh.120..875K
 Keywords:

 High Energy Physics  Theory
 EPrint:
 12 pages