Comments on Gauge Invariant Overlaps for Marginal Solutions in Open String Field Theory

We calculate the gauge invariant overlaps for Schnabl/Kiermaier-Okawa-RastelliZwiebach’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.

[1]  Michael Kiermaier,et al.  Exact marginality in open string field theory: a general framework , 2007, 0707.4472.

[2]  E. Fuchs,et al.  Analytical Solutions of Open String Field Theory , 2008, 0807.4722.

[3]  T. Kawano,et al.  Schnabl's solution and boundary states in open string field theory , 2008, 0804.4414.

[4]  T. Kawano,et al.  Gauge invariant overlaps for classical solutions in open string field theory , 2008, 0804.1541.

[5]  I. Ellwood.  The Closed string tadpole in open string field theory , 2008, 0804.1131.

[6]  S. Hellerman,et al.  Light-like tachyon condensation in open string field theory , 2008, 0803.1184.

[7]  Michael Kiermaier,et al.  Analytic solutions for marginal deformations in open string field theory , 2007, hep-th/0701249.

[8]  I. Kishimoto,et al.  Comments on Solutions for Nonsingular Currents in Open String Field Theories , 2007, 0706.0409.

[9]  E. Keski-Vakkuri,et al.  Disk partition function and oscillatory rolling tachyons , 2007, 0705.1916.

[10]  I. Ellwood.  Rolling to the tachyon vacuum in string field theory , 2007, 0705.0013.

[11]  R. Potting,et al.  Marginal deformations in string field theory , 2007, 0704.2222.

[12]  M. Schnabl.  Comments on marginal deformations in open string field theory , 2007, hep-th/0701248.

[13]  M. Schnabl.  Analytic solution for tachyon condensation in open string field theory , 2005, hep-th/0511286.

[14]  J. Klusoň.  Exact solutions in SFT and marginal deformation in BCFT , 2003, hep-th/0303199.

[15]  F. Larsen,et al.  Rolling tachyons and decaying branes , 2002, hep-th/0212248.

[16]  L. Rastelli,et al.  Experimental string field theory , 2002, hep-th/0211012.

[17]  Tomohiko Takahashi,et al.  Wilson Lines and Classical Solutions in Cubic Open String Field Theory , 2001, hep-th/0107046.

[18]  C. Thorn,et al.  Closed string-open string transitions and witten's string field theory , 1987 .