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arXiv 2410.09367quant-ph
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利用1+2维动力学解耦技术实现宽量程量子增强旋转传感

Wide-range quantum enhanced rotation sensing with 1+2 dimensional dynamical decoupling techniques

X. N. Feng, L. F. Wei

AI总结:

本文提出利用π相位移动序列实现运动动力学解耦,在1+2维混合原子Sagnac干涉仪中显著提升自旋相干时间,从而同时增强旋转传感的灵敏度与动态范围,为高精度惯性导航提供新途径。

摘要:

我们提出了一种运动动力学解耦技术,通过利用一系列π相位移动(而非传统的用于自旋翻转的π脉冲),在1+2维混合原子Sagnac干涉仪中实现量子增强旋转传感。通过将自旋与旋转下粒子的二维振动模式完全解耦,自旋相干时间以及由此产生的相位积累可以显著增加。因此,与之前自旋和粒子运动未完全解耦的方案相比,旋转传感的可实现灵敏度和动态范围可以同时得到显著增强和扩展。我们还讨论了无歧义估计旋转参数的实验可行性。希望该技术有望克服通常的带有被捕获粒子的物质波Sagnac干涉仪中存在的某些挑战,特别是对于要求高灵敏度和大动态范围的实际惯性导航。

英文摘要:

We propose a motional dynamical decoupling technique by utilizing a sequence of $π$-phase shifts, instead of the conventional $π$-pulses for spin flipping, to implement the quantum enhanced rotation sensing with a 1+2 dimensional hybrid atomic Sagnic interferometor. By fully disentangling the spin from the two-dimensional vibrational modes of the particle under rotation, the spin coherence time and thus the phase accumulation can be significantly increased. Consequently, both the achievable sensitivity and dynamic range of the rotation sensing can be significantly enhanced and extended simultaneously, compared to the previous schemes where the spin and motions of the particle were not completely decoupled. The experimental feasibility for the unambiguous estimation of the rotation parameters is also discussed. Hopefully, this technique holds promise for overcoming certain challenges existing in the usual matter-wave Sagnac interferometers with trapped particles, particularly for the practical inertial navigation that demands both high sensitivity and large dynamic range.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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