Quantum Many-Body Metrology of Rotation Sensing with Strong Interactions
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.
Keywords
Cite
@article{arxiv.2608.04082,
title = {Quantum Many-Body Metrology of Rotation Sensing with Strong Interactions},
author = {Yong-Jun Baak and Uwe R. Fischer},
journal= {arXiv preprint arXiv:2608.04082},
year = {2026}
}
Comments
8 pages, 5 figures, including End Matter; authors whose pertinent work we inadvertently omitted from the citations, please e-mail us