TH BSM Forum

New effective field theories for new physics

by Thomas Colas

Europe/Zurich
4/2-037 - TH meeting room (CERN)

4/2-037 - TH meeting room

CERN

18
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Description

Abstract: Several open problems in cosmology — including the nature of inflation, dark matter, and dark energy — involve spacetime-filling media with unknown microphysics, and can be probed so far only through their gravitational effects. This observation motivates a systematic open-system approach, in which gravity evolves in the presence of a generic, unobservable environment. In this talk, I will present a general framework for open gravitational dynamics based on General Relativity and the Schwinger-Keldysh formalism. As an application, I will describe the most general conservative and dissipative dynamics of scalar and tensor perturbations during single-clock inflation. I will conclude by discussing future prospects for dissipative dark sectors in the late universe.

Zoom Meeting ID
65562333965
Host
Elena Gianolio
Alternative hosts
Benoit Loyer, Joachim Kopp, Matthew Philip Mccullough, Pascal Pignereau, Joe Davighi, Marzia Bordone, Tim Cohen
Passcode
01055539
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