For a few bosons in a ring with two weak links, strong interactions make the many-body quantum Fisher information at zero rotation nonzero and large, improving slow-rotation sensing beyond the Bose-Hubbard prediction.
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Quantum Many-Body Metrology of Rotation Sensing with Strong Interactions
For a few bosons in a ring with two weak links, strong interactions make the many-body quantum Fisher information at zero rotation nonzero and large, improving slow-rotation sensing beyond the Bose-Hubbard prediction.