A Note on the Arrow of Time in Nonminimally Coupled Scalar Field FRW Cosmology

IF 1.2 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS

Gravitation and Cosmology Pub Date : 2023-11-23 DOI:10.1134/S0202289323040023

L. A. León Andonayre, M. A. Skugoreva, A. V. Toporensky, T. Vargas

引用次数: 0

Abstract

We revisit the cyclic Universe scenario in scalar field FRW cosmology and check its applicability for a nonminimally coupled scalar field. We show that for the most popular case of a quartic potential and the standard nonminimal coupling this scenario does work. On the other hand, we identify certain cases where the cyclic model fails to work and present the corresponding reasons for that.

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关于非最小耦合标量场FRW宇宙学中的时间箭头的注释

我们重新审视了标量场FRW宇宙学中的循环宇宙场景，并检验了它在非最小耦合标量场中的适用性。我们证明，对于最常见的四次势和标准非最小耦合的情况，这种情况是有效的。另一方面，我们确定了循环模型不起作用的某些情况，并提出了相应的原因。

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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来源期刊

Gravitation and Cosmology ASTRONOMY & ASTROPHYSICS-

CiteScore

1.70

自引率

22.20%

发文量

审稿时长

>12 weeks

期刊介绍： Gravitation and Cosmology is a peer-reviewed periodical, dealing with the full range of topics of gravitational physics and relativistic cosmology and published under the auspices of the Russian Gravitation Society and Peoplesâ€™ Friendship University of Russia. The journal publishes research papers, review articles and brief communications on the following fields: theoretical (classical and quantum) gravitation; relativistic astrophysics and cosmology, exact solutions and modern mathematical methods in gravitation and cosmology, including Lie groups, geometry and topology; unification theories including gravitation; fundamental physical constants and their possible variations; fundamental gravity experiments on Earth and in space; related topics. It also publishes selected old papers which have not lost their topicality but were previously published only in Russian and were not available to the worldwide research community