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<p>We study spacetime four-point functions of chiral primary operators for superstrings propagating in AdS<sub>3</sub> <i>× S</i><sup>3</sup> <i>× T</i><sup>4</sup> from the worldsheet perspective, allowing for external states with arbitrary spectral flow charges. We work at small boundary cross-ratio and consider both extremal (supersymmetry-protected) and non-extremal configurations. The string correlators involve a non-trivial integration over the worldsheet moduli, and we demonstrate how the exchange of short and long strings is encoded in distinct integration regions. We interpret our results in terms of the operator product expansion in the boundary theory, and make explicit the precise matching with the available data for the relevant holographic correlators.</p>

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Superstring four-point functions in AdS3 × S3 × T4

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年3月12日

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  • Emiliano Barone,
  • Sergio Iguri,
  • Nicolas Kovensky,
  • Julián H. Toro

摘要

We study spacetime four-point functions of chiral primary operators for superstrings propagating in AdS3 × S3 × T4 from the worldsheet perspective, allowing for external states with arbitrary spectral flow charges. We work at small boundary cross-ratio and consider both extremal (supersymmetry-protected) and non-extremal configurations. The string correlators involve a non-trivial integration over the worldsheet moduli, and we demonstrate how the exchange of short and long strings is encoded in distinct integration regions. We interpret our results in terms of the operator product expansion in the boundary theory, and make explicit the precise matching with the available data for the relevant holographic correlators.