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

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
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Sprache:eng
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bounce universe
parameter space
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Hwang, Sin Chol
Ri, Hyon Chol
description 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.
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subjects bounce universe
parameter space
title Cosmological constraints on the background dynamics of a two-field nonsingular bounce model
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