在宇宙学中检验广义相对论

IF 26.3 2区 物理与天体物理 Q1 PHYSICS, PARTICLES & FIELDS
Mustapha Ishak
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引用次数: 267

摘要

我们回顾了在宇宙尺度上检验广义相对论(GR)的最新进展和结果。在过去的二十年里,为了解决宇宙加速和与之相关的暗能量的问题,这一学科得到了迅速的发展。然而,随着精确宇宙学的出现,在宇宙尺度上测试引力物理本身也成为了一项有充分动机的努力。我们概述了宇宙重力探测器,在宇宙尺度上测试GR偏差的形式和参数化,选定的修正重力(MG)理论,重力筛选机制以及为这些测试开发的计算机代码。然后,我们总结了最近对MG参数和所选MG模型的宇宙学约束。我们补充了这些宇宙学上的限制,总结了最近的双中子星合并事件的影响。接下来,我们总结了一些有天体物理系统和没有天体物理系统的MG参数预测结果,这些结果将主导不确定性。该评论旨在提供主题的整体图景,并为有兴趣加入该领域的学生和研究人员提供切入点。它还可以作为在宇宙尺度上测试重力的最新结果和限制的快速参考。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Testing general relativity in cosmology

Testing general relativity in cosmology

We review recent developments and results in testing general relativity (GR) at cosmological scales. The subject has witnessed rapid growth during the last two decades with the aim of addressing the question of cosmic acceleration and the dark energy associated with it. However, with the advent of precision cosmology, it has also become a well-motivated endeavor by itself to test gravitational physics at cosmic scales. We overview cosmological probes of gravity, formalisms and parameterizations for testing deviations from GR at cosmological scales, selected modified gravity (MG) theories, gravitational screening mechanisms, and computer codes developed for these tests. We then provide summaries of recent cosmological constraints on MG parameters and selected MG models. We supplement these cosmological constraints with a summary of implications from the recent binary neutron star merger event. Next, we summarize some results on MG parameter forecasts with and without astrophysical systematics that will dominate the uncertainties. The review aims at providing an overall picture of the subject and an entry point to students and researchers interested in joining the field. It can also serve as a quick reference to recent results and constraints on testing gravity at cosmological scales.

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来源期刊
Living Reviews in Relativity
Living Reviews in Relativity 物理-物理:粒子与场物理
CiteScore
69.90
自引率
0.70%
发文量
0
审稿时长
20 weeks
期刊介绍: Living Reviews in Relativity is a peer-reviewed, platinum open-access journal that publishes reviews of research across all areas of relativity. Directed towards the scientific community at or above the graduate-student level, articles are solicited from leading authorities and provide critical assessments of current research. They offer annotated insights into key literature and describe available resources, maintaining an up-to-date suite of high-quality reviews, thus embodying the "living" aspect of the journal's title. Serving as a valuable tool for the scientific community, Living Reviews in Relativity is often the first stop for researchers seeking information on current work in relativity. Written by experts, the reviews cite, explain, and assess the most relevant resources in a given field, evaluating existing work and suggesting areas for further research. Attracting readers from the entire relativity community, the journal is useful for graduate students conducting literature surveys, researchers seeking the latest results in unfamiliar fields, and lecturers in need of information and visual materials for presentations at all levels.
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