Cosmic evolution of scalar fields with multiple vacua: generalized DBI and quintessence

DOI10.1007/S10773-016-3076-XzbMATH Open1358.83094arXiv1501.06960OpenAlexW3105752126MaRDI QIDQ517869

Author name not available (Why is that?)

Publication date: 28 March 2017

Published in: (Search for Journal in Brave)

Abstract: We find a method to rewrite the equations of motion of scalar fields, generalized DBI field and quintessence, in the autonomous form foremph{arbitrary} scalar potentials. With the aid of this method, we explore the cosmic evolution of generalized DBI field and quintessence with the potential of multiple vacua. Then we find that the scalars are always frozen in the false or true vacuum in the end. Compared to the evolution of quintessence, the generalized DBI field has more times of oscillations around the vacuum of the potential. The reason for this point is that, with the increasing of speed $dotphi$, the friction term of generalized DBI field is greatly decreased. Thus the generalized DBI field acquires more times of oscillations.

Full work available at URL: https://arxiv.org/abs/1501.06960

zbMATH Keywords

No records found.

Mathematics Subject Classification ID

No records found.

This page was built for publication: Cosmic evolution of scalar fields with multiple vacua: generalized DBI and quintessence

Report a bug (only for logged in users!)Click here to report a bug for this page (MaRDI item Q517869)