试图用可复化奇点来规避里奇逆不去定理:一个涌现的暗能量模型

IF 5 2区 物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS
Mattia Scomparin
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引用次数: 0

摘要

里奇逆引力是一种基于反曲率张量(即里奇张量的逆)的新型四阶引力理论。在这种背景下,我们引入了一种新的方法来规避一个众所周知的宇宙轨迹不去定理的束缚效应,该定理不能顺利地将减速的宇宙时代与当前宇宙的加速膨胀结合起来。因此,我们设计了一类新兴的里奇逆理论,它的宇宙学不会落入不去的奇点,作为稳定的吸引子解实现了观测到的膨胀。这一新视角将里奇逆宇宙论重新训练为可行的暗能量模型。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Attempting to circumvent the Ricci-inverse no-go theorem with complexifiable singularities: An emergent Dark Energy model
Ricci-inverse gravity is a new type of fourth-order gravity theory based on the anti-curvature tensor, that is, the inverse of the Ricci tensor. In this context, we introduce a novel method to circumvent the binding effects of a well-known no-go theorem for cosmic trajectories that cannot smoothly join a decelerated cosmic age with the current accelerated expansion of the universe. We therefore design an emergent class of Ricci-inverse theories whose cosmologies, without falling into no-go singularities, achieve the observed expansion as a stable attractor solution. This new perspective retrains Ricci-inverse cosmologies as viable dark energy models.
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来源期刊
Physics of the Dark Universe
Physics of the Dark Universe ASTRONOMY & ASTROPHYSICS-
CiteScore
9.60
自引率
7.30%
发文量
118
审稿时长
61 days
期刊介绍: Physics of the Dark Universe is an innovative online-only journal that offers rapid publication of peer-reviewed, original research articles considered of high scientific impact. The journal is focused on the understanding of Dark Matter, Dark Energy, Early Universe, gravitational waves and neutrinos, covering all theoretical, experimental and phenomenological aspects.
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