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  • Letter
  • Open Access

Cosmological double-copy relations

Hayden Lee1 and Xinkang Wang2

  • 1Kavli Institute for Cosmological Physics, University of Chicago, Chicago, Illinois 60637, USA
  • 2Department of Physics, University of Chicago, Chicago, Illinois 60637, USA

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Phys. Rev. D 108, L061702 – Published 28 September, 2023

DOI: https://doi.org/10.1103/PhysRevD.108.L061702

Abstract

We present differential double-copy relations between gluon and graviton three-point functions in AdSd+1. We introduce a set of differential operators in anti–de Sitter (AdS) that naturally generalize on shell kinematics of scattering amplitudes in flat space. This provides a way to construct AdS correlators by replacing the kinematic variables of amplitudes with the corresponding differential operators and suitably ordering them. By construction, the resulting correlators are manifestly conformally invariant, with the correct flat-space limit and exhibit a differential double-copy structure.

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Information

Phys. Rev. D 108, L061702– Published 28 September, 2023
  • Received 27 December 2022
  • Accepted 11 September 2023
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