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Celestial two-point functions and rectified dictionary

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arxiv 2312.07057 v1 pith:F5UUSUUI submitted 2023-12-12 hep-th gr-qc

Hideo Furugori , Naoki Ogawa , Sotaro Sugishita , Takahiro Waki This is my paper · ORCID
classification hep-thgr-qc
keywords dictionarycelestialfunctionstwo-pointccftmasslesstakecauses
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A naive celestial dictionary causes massless two-point functions to take the delta-function forms in the celestial conformal field theory (CCFT). We rectify the dictionary, involving the shadow transformation so that the two-point functions follow the standard power-law. In this new definition, we can smoothly take the massless limit of the massive dictionary. We also compute a three-point function using the new dictionary and discuss the OPE in CCFT.

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Cited by 1 Pith paper

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  1. Conformal Partial Wave Expansion of Celestial Correlators

    hep-th 2025-02 conditional novelty 7.0 of 10

    Celestial correlators in Minkowski space admit conformal partial wave expansions with meromorphic spectral densities, enabling conformal block expansions that simplify dramatically for massless scalars.

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