Notes on weight-shifting operators and unifying relations for cosmological correlators

Abstract

We seek the inverse formulas for the cosmological unifying relation between gluons and conformally coupled scalars. We demonstrate that the weight-shifting operators derived from the conformal symmetry at the dS late-time boundary can serve as the inverse operators for the 3-point cosmological correlators. However, in the case of the 4-point cosmological correlator, we observe that the inverse of the unifying relation cannot be constructed from the weight-shifting operators. Despite this failure, we are inspired to propose a "weight-shifting uplifting" method for the 4-point gluon correlator.

arXiv commentpublished version

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Cited by in corpus (1)

• Multivariate hypergeometric solutions of cosmological (dS) correlators by $\text{d}\log$-form differential equations