June 26, 2023 to July 21, 2023
Albano Building 3
Europe/Stockholm timezone

Observables in expanding universes

Jun 30, 2023, 10:30 AM
Albano 3: 4204 - SU Conference Room (56 seats) (Albano Building 3)

Albano 3: 4204 - SU Conference Room (56 seats)

Albano Building 3

Hannes Alfvéns väg 12, 10691 Stockholm, Sweden


Paolo Benincasa (MPI Munich)


The physics occurring in an expanding universe is encoded in
correlation functions at his boundary. Part of its structure is
inherited from the probability distributions of the field configuration
at such boundary, or equivalently in the so-called wavefunction of the
universe. I'll review the analytic structure of both the wavefunction
and a certain class of correlation functions, their physical content
their relation and how to compute the latter from the former. I'll
finally discuss a geometrical picture which allows to talk about both
quantities at once and to extract physical information that are obscure
in the standard field theory language.

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