Starts 17 Oct 2017 14:30
Ends 17 Oct 2017 16:00
Central European Time
Leonardo Building - Luigi Stasi Seminar Room
Abstract. A generic feature of string compactifications is the presence of many scalar fields, called moduli. Moduli are usually displaced from their post-inflationary minimum during inflation. Their relaxation to the minimum could lead to the production of oscillons: long-lived non-linear excitations of the scalar fields. One interesting consequence of oscillon dynamics is the production of gravitational waves.

In this talk I survey under which conditions oscillons can be produced in string cosmology, and I will illustrate their production and potential phenomenology with two explicit examples: the case of an initially displaced volume modulus in the KKLT scenario and of an initially displaced blow-up modulus in the LVS.