Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Status Confirmed
Seminar Series SEM-GRECO
Subjects astro-ph
Date Monday 31 May 2021
Time 11:00
Institute IAP
Seminar Room Webinar for zoom details contact fumagall@iap.fr
Speaker's Last Name D'amico
Speaker's First Name Guido
Speaker's Email Address
Speaker's Institution University of Parma
Title Rollercoaster Cosmology, and a Gravity Wave Factory
Abstract Does inflation have to happen all in one go? The answer is no! All cosmological problems can be solved by a sequence of bursts of cosmic acceleration, interrupted by short epochs of decelerated expansion. In this rollercoaster cosmology, models that seem excluded for a single long stage become viable again, and high-scale inflation is more natural. At the same time, we expect interesting predictions at several different length scales, such as gravitational wave signals potentially detectable by LISA. I will describe the general framework, and focus on a realization with two stages of monodromy inflation.
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