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强相互作用下旋转传感的量子多体计量学

Quantum Many-Body Metrology of Rotation Sensing with Strong Interactions

Yong-Jun Baak, Uwe R. Fischer

arXiv 2608.04082首次发表:更新:

AI 中文总结

该研究针对准一维环形阱中带两个弱连接的少量强相互作用玻色子,通过自洽多体解预测强关联多体陀螺仪的旋转传感终极灵敏度,发现大相互作用耦合下量子费舍尔信息最大,为高分辨率估计慢旋转提供了方案。

AI 中文摘要

我们研究了被限制在带有两个弱连接的准一维环形阱中的少量强相互作用玻色子实现旋转传感的终极量子极限。研究表明,该问题的自洽多体解是正确预测这种强关联多体陀螺仪对旋转的终极灵敏度所必需的。对于小旋转速度和少粒子数,多体量子费舍尔信息在大相互作用耦合下达到最大值,这表明强相互作用的小型化多体传感器具有以高空间分辨率精确估计慢旋转的潜力。

英文摘要

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.

Comments8 pages, 5 figures, including End Matter; authors whose pertinent work we inadvertently omitted from the citations, please e-mail us

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