Speaker
Paolo Benincasa
Description
I present a first principle definition of the Bunch-Davies
wavefunctional in perturbation theory for generic scalars in arbitrary
FRW cosmologies. This novel picture generalises the original
description of conformally-coupled and light states in terms of
(generalised) cosmological polytopes. I'll comment on the insights that
it provides on the analytic structure of such an observables, encoded
in its boundary structure
