Regular Article - Theoretical Physics
Asymptotic behavior of N-fields Chiral cosmology
Instituto de Ciencias Físicas y Matemáticas, Universidad Austral de Chile, Valdivia, Chile
2 Institute of Systems Science, Durban University of Technology, PO Box 1334, 4000, Durban, South Africa
3 Departamento de Matemáticas, Universidad Católica del Norte, Avda. Angamos 0610, Casilla 1280, Antofagasta, Chile
Accepted: 28 August 2020
Published online: 14 September 2020
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 the new stationary points are only of mathematical interest since they do not describe new exact solutions different from those recovered for .
© The Author(s) 2020
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