Cosmological Double-Copy Relations

2022/12/21 by Hayden Lee, Lee, Hayden, Xinkang Wang +1 · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Pulsars and Gravitational Waves Research

paper · pdf · doi:10.48550/arxiv.2212.11282

Abstract

We present differential double-copy relations between gluon and graviton three-point functions in (A)dS_d+1. We introduce a set of differential operators in (A)dS that naturally generalize on-shell kinematics of scattering amplitudes in flat space. This provides a way to construct (A)dS 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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