Theoretical Cosmology meetings
To actively encourage the field of theoretical cosmology and to set an informal stage for the exchange of ideas, the Dutch theoretical cosmology community organizes Friday afternoon meetings approximately 6 times a year — usually on the first Friday of the month. The meetings typically start in the afternoon with a main speaker, followed by a short break to continue with another seminar or journal club discussion on some topic of current interest. We end the afternoon with drinks. The supporting institutes in Leiden, Amsterdam, Groningen, Utrecht where recently joined by the strings and cosmology group in Leuven and take turns in hosting the event.
Amsterdam UvA Spring 2017
March 3 @ 12:00 - 18:00
UvA Amsterdam, March 3, 2017
14:15-15:15 Talk by Jaume Garriga (Barcelona)
Title: Primordial black holes from cosmic inflation
15:15 – 15:45 Coffee
15:45-16:45 Talk by Marjorie Schillo (Leuven)
Title: A new top-down model of inflation
Abstract: I will present recent work that has succeeded in embedding the mechanism of Unwinding Inflation in string theory. I will review Unwinding Inflation and the process of brane-flux annihilation, in which D-brane charge in a flux background can dissolve and discharge Ramond-Ramond flux. A dynamical brane mediates the brane-flux annihilation as it moves across a compact internal cycle. This mechanism has recently been extended such that many units of flux can be discharged in a “flux cascade.” The flux cascade can be used to reduce vacuum energy and give rise to 60 efolds of inflation.