Speaker
Diego Cruces Mateo
(Institute of Theoretical Physics - Chinese Academy of Sciences (ITP,CAS))
Description
Stochastic inflation provides a powerful framework for studying inflaton fluctuations in a non-perturbative regime. However, to make the problem tractable, the formalism relies on a number of simplifying assumptions. In this talk, I will explore these assumptions, focusing in particular on the construction of the noise terms, which are typically taken to be white and Markovian. I will then discuss how these assumptions emerge within standard perturbation theory, compare the two approaches, and explore the physical consequences that follow from the standard treatment of noise in stochastic inflation.
Author
Diego Cruces Mateo
(Institute of Theoretical Physics - Chinese Academy of Sciences (ITP,CAS))