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Two-point closed string amplitudes in the BRST formalism

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arxiv 2402.07464 v1 pith:WHXSEGZ3 submitted 2024-02-12 hep-th

Isao Kishimoto , Shigenori Seki , Tomohiko Takahashi This is my paper · ORCID
classification hep-th
keywords amplitudesstringtwo-pointbrstclosedbeenformalismaddition
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Two-point tree-level amplitudes in bosonic closed string theory are described by a correlation function within the BRST formalism, which respects manifest Lorentz and conformal invariance. In the derivation of the two-point amplitudes, we use the mostly BRST exact operator, which has been introduced for two-point open string amplitudes, and a closed string vertex with ghost number three, which has been explored in our recent work, in addition to the conventional one.

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  1. Two-point tree-level string amplitudes as AdS transition amplitudes

    hep-th 2025-05 reject novelty 5.0 of 10

    Two-point open and closed string amplitudes are algebraically recast, in 't Hooft-like tensionless limits, into sums of AdS scalar transition amplitudes with coupling constants governed by worldsheet curvatures.

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