The dark aftermath of Higgs inflation
Namur Center for Complex Systems (naXys), University of Namur, Rue de Bruxelles 61, B-5000, Namur, Belgium
2 Dipartimento di Fisica, Università di Trento and TIFPA-INFN, Via Sommarive 14, 38123, Povo, Italy
* e-mail: firstname.lastname@example.org
Accepted: 11 March 2014
Published online: 2 April 2014
In this paper we study the dynamics of the late Universe when a nonminimally coupled Higgs field is present. In general, the nonminimal coupling leads to a nontrivial mixing between the gravitational degrees of freedom and the Goldstone massless bosons. We know that this is irrelevant during the inflationary phase. In contrast, in the late Universe the nonminimal coupling affects the classical equations of motion, leading to an acceleration of the expansion rate or to a collapse that forms Q-balls.
© Società Italiana di Fisica and Springer-Verlag Berlin Heidelberg, 2014