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Holography for de Sitter 4-point functions

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If you have a question about this talk, please contact Dr Dong-Gang Wang.

We review the calculation of de Sitter correlators from a holographic perspective. Using either the wavefunction of the universe or the Schwinger-Keldysh formalism, a connection with AdS/CFT can be established relating de Sitter correlators to those of a boundary conformal field theory. This mapping is especially interesting in the cases for which de Sitter correlators have infrared divergences, and more generally, for which the CFT correlators require renormalisation. We discuss the anomalous Ward identities that arise and their implications for the operator dimensions of the dual CFT .

This talk is part of the Cosmology Lunch series.

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