Asymptotic behavior of N-fields Chiral cosmology

Leon, Genly

Abstract

We perform a detailed analysis for the asymptotic behaviour for the multi-scalar field Chiral cosmological scenario. We present the asymptotic behaviour for the one-field, two-fields and three-fields Chiral models. From these results, and deriving conserved quantities, we present a Theorem for the N-fields model for the Chiral model with N-fields. We find that the maximum number of scalar fields which provide interesting physical results at the background level is two-fields, while for N> 2 the new stationary points are only of mathematical interest since they do not describe new exact solutions different from those recovered for N= 2.

Más información

Título según WOS: Asymptotic behavior of N-fields Chiral cosmology
Título según SCOPUS: Asymptotic behavior of N-fields Chiral cosmology
Título de la Revista: European Physical Journal C
Volumen: 80
Número: 9
Editorial: Springer Nature
Fecha de publicación: 2020
Idioma: English
DOI:

10.1140/epjc/s10052-020-8423-7

Notas: ISI, SCOPUS