宇宙循环模型在相对论引力理论中可行吗？

IF 0.4 4区物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY

Moscow University Physics Bulletin Pub Date : 2024-10-09 DOI:10.3103/S0027134924700565

Yu. V. Chugreev

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引用次数: 0

摘要

在相对论引力理论（RTG）的平面FLRW模型中提出了一个新的暗能量模型。它是一个具有二次势能的全局标量场（(\Phi\)），它确保了当前时间的宇宙学加速和晚期时间的反弹。在收缩阶段，黎曼度量的卡斯纳（Kasner）型各向异性会在FLRW情况下打破大爆炸附近的引力子-质量反弹机制。还有一种非周期性情况，即只有在膨胀的最后阶段，足够小的引力子-质量项才有意义。反弹之后，在下一个压缩纪元，各向异性将增加，物质密度最终将达到普朗克值。

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Is the Cyclic Model of the Universe Possible in the Relativistic Theory of Gravitation?

A new model of Dark Energy is proposed within the flat FLRW model in RTG (Relativistic Theory of Gravitation). It is a global scalar field \(\Phi\) with a quadratic potential, which ensures cosmological acceleration at present times and a bounce at late times. During the contraction stage, the growing Kasner-type anisotropy of Riemannian metrics will break a graviton-mass bounce mechanism near the Big Bang in the FLRW case. There is also a noncyclic scenario, with sufficiently small graviton-mass terms significant only at the final stage of expansion. After bounce, during the next compression epoch, anisotropy will increase, and the matter density will finally reach the Planck value.

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来源期刊

Moscow University Physics Bulletin PHYSICS, MULTIDISCIPLINARY-

CiteScore

0.70

自引率

0.00%

发文量

129

审稿时长

6-12 weeks

期刊介绍： Moscow University Physics Bulletin publishes original papers (reviews, articles, and brief communications) in the following fields of experimental and theoretical physics: theoretical and mathematical physics; physics of nuclei and elementary particles; radiophysics, electronics, acoustics; optics and spectroscopy; laser physics; condensed matter physics; chemical physics, physical kinetics, and plasma physics; biophysics and medical physics; astronomy, astrophysics, and cosmology; physics of the Earth’s, atmosphere, and hydrosphere.