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

IF 0.4 4区 物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY
Yu. V. Chugreev
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引用次数: 0

Abstract

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.

宇宙循环模型在相对论引力理论中可行吗?
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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来源期刊
Moscow University Physics Bulletin
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.
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