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首页> 外文期刊>International journal of modern physics, D. Gravitation, astrophysics, cosmology >Hints of modified gravity in cosmos and in the lab?
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Hints of modified gravity in cosmos and in the lab?

机译：宇宙中和实验室中的改良重力提示？

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General Relativity (GR) is consistent with a wide range of experiments/observations from millimeter scales up to galactic scales and beyond. However, there are reasons to believe that GR may need to be modified because it includes singularities (it is an incomplete theory) and also it requires fine-tuning to explain the accelerating expansion of the universe through the cosmological constant. Therefore, it is important to check various experiments and observations beyond the above range of scales for possible hints of deviations from the predictions of GR. If such hints are found it is important to understand which classes of modified gravity theories are consistent with them. The goal of this review is to summarize recent progress on these issues. On sub-millimeter scales, we show an analysis of the data of the Washington experiment [D. J. Kapner, T. S. Cook, E. G. Adelberger, J. H. Gundlach, B. R. Heckel, C. D. Hoyle and H. E. Swanson, Phys. Rev. Lett. 98 (2007) 021101, arXiv: hep-ph/0611184 [hep-ph]] searching for modifications of Newton's Law on sub-millimeter scales and demonstrate that a spatially oscillating signal is hidden in this dataset. We demonstrate that even though this signal cannot be explained in the context of standard modified theories (viable scalar tensor and f(R) theories), it is a rather generic prediction of nonlocal gravity theories. On cosmological scales we review recent analyses of Redshift Space Distortion (RSD) data which measure the growth rate of cosmological perturbations at various redshifts and show that these data are in some tension with the ACDM parameter values indicated by Planck/2015 CMB data at about 3 sigma level. This tension can be reduced by allowing for an evolution of the effective Newton constant that determines the growth rate of cosmological perturbations. We conclude that even though this tension between the data and the predictions of GR could be due to systematic/statistical uncertainties of the data, it could a
机译：一般相对性（GR）与毫米的各种实验/观察结果一致，从毫米缩放到银河系统和超越。然而，有理由认为GR可能需要修改，因为它包括奇点（它是一个不完整的理论），并且还需要微调来解释通过宇宙常数的宇宙的加速扩张。因此，重要的是检查超出上述尺度范围的各种实验和观察，以获得与GR的预测的可能暗示的暗示。如果发现这种提示，重要的是要理解哪个修改的重力理论与它们一致。本综述的目标是总结最近对这些问题的进展。在亚毫米秤上，我们展示了华盛顿实验数据的分析[D. J. Kapner，T. S. Cook，E. G.Adelberger，J.H.Gundlach，B. R.Heckel，C. D.Hoyle和H.E.Swanson，Swanson，Swanson，Swanson。 rev. lett。 98（2007）021101，ARXIV：HEP-PH / 0611184 [HEP-PH]]搜索牛顿定律对亚毫米秤的修改，并证明了该数据集中隐藏了空间振荡信号。我们证明即使在标准修改理论的上下文中无法解释该信号（可行的标量张卷曲和F（R）理论），它是对非本体重力理论的相当通用预测。在宇宙学尺度上，我们审查最近的红移空间失真（RSD）数据分析，该数据测量各种红移在各种红移宇宙学扰动的增长速率，并表明这些数据与ACDM参数值以大约3的普通普通参数值指示了一些张力Sigma水平。通过允许确定富含宇宙扰动的生长速率的有效牛顿常数的演变，可以降低这种张力。我们得出结论，即使数据与GR的预测之间的这种紧张可能是由于数据的系统/统计不确定性，它可能是

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