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    Improvement for Testing the Gravitational Inverse-Square Law at the Submillimeter Range

    作者: 来源: 发布时间:2020年04月02日 20:36 点击次数:[]

    Improvement for Testing the Gravitational Inverse-Square Law at the Submillimeter Range

    Wen-Hai Tan#, An-Bin Du#, Wen-Can Dong, Shan-Qing Yang*, Cheng-Gang Shao, Sheng-Guo Guan, Qing-Lan Wang, 

    Bi-Fu Zhan, Peng-Shun Luo, Liang-Cheng Tu, and Jun Luo*

    We improve the test of the gravitational inverse-square law at the submillimeter range by suppressing the vibration of the electrostatic shielding membrane to reduce the disturbance coupled from the residual surface potential. The result shows that, at a 95% confidence level, the gravitational inverse-square law holds (|α| ≤ 1) down to a length scale λ = 48 μm. This work establishes the strongest bound on the magnitude α of the Yukawa violation in the range of 40–350 μm, and improves the previous bounds by up to a factor of 3 at the length scale λ ≈ 70 μm. Furthermore, the constraints on the power-law potentials are improved by about a factor of 2 for k = 4 and 5.

    期刊名:PHYSICAL REVIEW LETTERS

    期/卷:124

    页码:051301

    发表时间:20202

    DOI: https://doi.org/10.1103/PhysRevLett.124.051301


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