Homotopy Operators and Identity-Based Solutions in Cubic Superstring Field Theory
arXiv:1109.2406 · doi:10.1007/JHEP10(2011)114
Abstract
We construct a class of nilpotent operators using the BRST current and ghost fields in superstring theory. The operator can be realized in cubic superstring field theory as a kinetic operator in the background of an identity-based solution. For a particular type of the deformed BRST operators, we find a homotopy operator and discuss its relationship to the cohomology in a similar way to the bosonic case, which has been elaborated by the authors.
22 pages
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