Séminaire / Seminar GReCO |
| « Dissipation and noise in effective field theories for cosmology » |
|
Thomas Colas |
| Dissipation and noise arise from the incomplete modelling of unknown environments through which light and gravitational waves propagate. In this talk, I will introduce a framework that extends effective field theories to account for these effects. I will highlight how symmetries, locality, and unitarity impose constraints on dissipation and noise. Finally, I will explore the resulting phenomenology in the early and late universe, with a focus on the potential observational signatures of these effects. |
|
mardi 22 avril 2025 - 11:00 Salle Entresol Daniel Chalonge Institut d'Astrophysique de Paris |
| Pages web du séminaire / Seminar's webpage |