# Solid of Inflation: An alternative symmetry breaking pattern for an EFT of inflation

In this talk I will
discuss a cosmological model where primordial inflation is driven by a solid',
defined as a system of three derivatively coupled scalar fields obeying certain
symmetries and spontaneously breaking a certain subgroup of these. The symmetry
breaking pattern differs drastically from that of standard inflationary models:
time translations are unbroken. This prevents our model from fitting into the
standard effective field theory description of adiabatic perturbations. Consequently,
it exhibits a novel non-Gaussian shape'.

Collection/Series:
Event Type:
Seminar
Scientific Area(s):
Speaker(s):
Event Date:
Jeudi, Novembre 15, 2012 - 11:00 to 12:30
Location:
Space Room
Room #:
400