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arXiv · 1607.05985

Test of non-Newtonian gravitational force at micrometer range

Pengshun Luo·Jianbo Wang·Shengguo Guan·Wenjie Wu·Zhaoyang Tian·Shanqing Yang·Chenggang Shao·Jun Luo
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Abstract

We report an experimental test of non-Newtonian gravitational forces at mi- crometer range. To experimentally subtract off the Casimir force and the electrostatic force background, differential force measurements were performed by sensing the lateral force between a gold sphere and a density modulated source mass using a soft cantilever. The current sensitivity is limited by the patch electrostatic force, which is further improved by two dimensional (2D) force mapping. The preliminary result sets a model independent constraint on the Yukawa type force at this range.

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Pengshun Luo, Jianbo Wang, Shengguo Guan, Wenjie Wu, Zhaoyang Tian, Shanqing Yang, Chenggang Shao, Jun Luo. 2016-07-18. Test of non-Newtonian gravitational force at micrometer range. https://arxiv.org/abs/1607.05985

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