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arXiv · 2608.04082

Quantum Many-Body Metrology of Rotation Sensing with Strong Interactions

Yong-Jun Baak·Uwe R. Fischer
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Abstract

We study the ultimate quantum limit of rotation sensing with a few strongly interacting bosons confined in a quasi-one-dimensional ring trap with two weak links. It is demonstrated that a self-consistent many-body solution of the problem is required to correctly predict the ultimate sensitivity of this strongly correlated many-body gyroscope to rotation. For both small rotation velocities and small particle numbers, the many-body quantum Fisher information becomes maximal for large interaction couplings, showing the potential of strongly interacting miniaturized many-body sensors to precisely estimate slow rotations with high spatial resolution.

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Yong-Jun Baak, Uwe R. Fischer. 2026-08-04. Quantum Many-Body Metrology of Rotation Sensing with Strong Interactions. https://arxiv.org/abs/2608.04082

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