Measuring gravity at the micron scale with laser-cooled trapped microspheres: a continuation

Project: Research project

Project Details


In this proposal, we will continue to develop an experiment using laser-cooled trapped micro-spheres to test for Yukawa-type deviations from Newtonian gravity at the micron length scale. The project is conceptually divided into three tasks: (1) refinement of techniques to position levitated nanospheres within few-micron distances from a source mass surface, (2) investigation of systematic errors in preliminary gravity measurements, (3) in-parallel development of novel methods for trapping and cooling the levitated nanoparticles, including sympathetic cooling with cold atoms.
Effective start/end date7/1/186/30/21


  • National Science Foundation (PHY-1806686-002)


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