Abstract
We construct an analytic solution for tachyon condensation around identity-based marginal solutions in Berkovits’ WZW-like open superstring field theory. Using this, which is a kind of wedge-based solution, the gauge invariant overlaps for the identity-based marginal solutions can be calculated analytically. This is a straightforward extension of a method in bosonic string field theory, which has been elaborated by the authors, to superstring. We also comment on a gauge equivalence relation between the tachyon vacuum solution and its marginally deformed one. From this viewpoint, we can find the vacuum energy of the identity-based marginal solutions to be zero, which agrees with the previous result as a consequence of ξ zero mode counting.
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ArXiv ePrint: 1404.4427
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Kishimoto, I., Takahashi, T. Comments on observables for identity-based marginal solutions in Berkovits’ superstring field theory. J. High Energ. Phys. 2014, 31 (2014). https://doi.org/10.1007/JHEP07(2014)031
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DOI: https://doi.org/10.1007/JHEP07(2014)031