Stronger Limits on Hypothetical Yukawa Interactions in the 30-8000 nm Range

Y. J. Chen, W. K. Tham, D. E. Krause, D. López, E. Fischbach, R. S. Decca

Research output: Contribution to journalArticlepeer-review

Abstract

We report the results of new differential force measurements between a test mass and rotating source masses of gold and silicon to search for forces beyond Newtonian gravity at short separations. The technique employed subtracts the otherwise dominant Casimir force at the outset and, when combined with a lock-in amplification technique, leads to a significant improvement (up to a factor of 103) over existing limits on the strength (relative to gravity) of a putative force in the 40-8000 nm interaction range.

Original languageEnglish (US)
Article number221102
JournalPhysical review letters
Volume116
Issue number22
DOIs
StatePublished - Jun 2 2016

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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