Friday, July 5, 2013

1307.1203 (Isao Kishimoto et al.)

Gauge Invariant Overlaps for Identity-Based Marginal Solutions    [PDF]

Isao Kishimoto, Tomohiko Takahashi
We investigate identity-based solutions associated with marginal deformations in open string field theory. We find that the identity-based marginal solutions can be represented as a difference of wedge-based solutions plus an integration of a deformed BRST exact state. Using this expression, the gauge invariant overlap can be calculated analytically for the identity-based solutions. Moreover, we show that, by gauge transformation, the overlap is transformed into a disk correlation function with the integrations of currents at the boundary.
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