Cosmological constraints on the background dynamics of a two-field nonsingular bounce model

In this study, we consider a nonsingular two-field bounce scenario with non-minimal kinetic coupling between two scalar fields. We derive constraints on the model parameters from the finiteness of the physical quantities at the classical level and from the relation between the late-time accelerated...

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Veröffentlicht in:Chinese physics C 2024-11, Vol.48 (11), p.115103
Hauptverfasser: Ri, Kang Song, Hwang, Sin Chol, Ri, Hyon Chol
Format: Artikel
Sprache:eng
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Zusammenfassung:In this study, we consider a nonsingular two-field bounce scenario with non-minimal kinetic coupling between two scalar fields. We derive constraints on the model parameters from the finiteness of the physical quantities at the classical level and from the relation between the late-time accelerated expansion and particle production up to the bounce phase. We then determine the allowed parameter space for the model.
ISSN:1674-1137
2058-6132
DOI:10.1088/1674-1137/ad6669