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Homotopy Operators and Identity-Based Solutions in Cubic Superstring Field Theory

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arxiv 1109.2406 v1 pith:WMIWVDNZ submitted 2011-09-12 hep-th

Shoko Inatomi , Isao Kishimoto , Tomohiko Takahashi This is my paper · ORCID
classification hep-th
keywords operatoroperatorssuperstringtheorybrstcubicfieldhomotopy
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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.

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  1. Deriving on-shell open string field amplitudes without using Feynman rules

    hep-th 2019-08 conditional novelty 7.0 of 10

    New gauge-invariant functionals of the open string field are shown to reproduce on-shell tree-level amplitudes around known D-brane backgrounds without using Feynman rules.

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