Prof.
Fedor Bezrukov
(University of Manchester)
28/07/2020, 18:00
We use lattice methods to perform the first nonlinear study of preheating in R2-healed Higgs inflation for "R2-like" parameters 1.1×109 and 1.8×109 where the curvature-squared coupling β and nonminimal coupling ξ of the Higgs field contribute similarly to the CMB scalar perturbations. Preheating occurs first through tachyonic production of Higgs bosons, and later scattering off the homogeneous...
