双场非奇异反弹模型背景动力学的宇宙学约束

Chinese Physics C Pub Date : 2024-07-23 DOI:10.1088/1674-1137/ad6669

Kang Song Ri, Sin Chol Hwang, Hyon Chol Ri

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摘要

在本文中，我们考虑了两个标量场之间具有非最小动能耦合的非星形反弹情景。我们从经典水平上物理量的有限性，以及直到反弹阶段的晚期加速膨胀与粒子产生之间的关系，推导出模型参数的约束条件。然后，我们确定了模型允许的参数空间。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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

In this paper we consider a nonsingular bounce scenario with non-minimal kinetic coupling between two scalar fields.We derive the 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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Chinese Physics C

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