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Combined Test of the Gravitational Inverse-Square Law at the Centimeter Range

May 31, 2021  

Title: Combined Test of the Gravitational Inverse-Square Law at the Centimeter Range

Authors: Jun Ke, Jie Luo, Cheng-Gang Shao, Yu-Jie Tan, Wen-Hai Tan, and Shan-Qing Yang

Source: PHYSICAL REVIEW LETTERS,126,211101

Published: 26 May 2021

Link: https://doi.org/10.1103/PhysRevLett.126.211101


Abstract:

Experiments measuring the Newtonian gravitational constant G can offer uniquely sensitive probes of the test of the gravitational inverse-square law. An analysis of the non-Newtonian effect in two independent experiments measuring G is presented, which permits a test of the 1/r2 law at the centimeter range. This work establishes the strongest bound on the magnitude α of Yukawa-type deviations from Newtonian gravity in the range of 5–500 mm and improves the previous bounds by up to a factor of 7 at the length range of 60–100 mm.


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