The ability to measure small or slow rotations relative to an inertial frame is valuable in navigation as well as in fundamental physics. A device that exploits techniques developed in atomic physics could lead to sensitive and compact rotation sensors.
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Stoner, R., Walsworth, R. Collisions give sense of direction. Nature Phys 2, 17–18 (2006). https://doi.org/10.1038/nphys204
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DOI: https://doi.org/10.1038/nphys204
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