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2021

The Inflationary Wavefunction from Analyticity and Factorization

Meltzer, David

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We study the analytic properties of tree-level wavefunction coefficients in quasi-de Sitter space.

We focus on theories which spontaneously break dS boost symmetries and can produce significant non-Gaussianities.
The corresponding inflationary correlators are (approximately) scale invariant, but are not invariant under the full conformal group.
We derive cutting rules and dispersion formulas for the late-time wavefunction coefficients by using factorization and analyticity properties of the dS bulk-to-bulk propagator.

The Inflationary Wavefunction from Analyticity and Factorization · Around

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