Comments on Observables for Identity-Based Marginal Solutions in Berkovits' Superstring Field Theory

Understand

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.