Optimal Floquet state engineering for large scale atom interferometers

IF 14.7 1区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Nature Communications Pub Date : 2024-11-27 DOI:10.1038/s41467-024-54539-w

T. Rodzinka, E. Dionis, L. Calmels, S. Beldjoudi, A. Béguin, D. Guéry-Odelin, B. Allard, D. Sugny, A. Gauguet

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Abstract

The effective control of atomic coherence with cold atoms has made atom interferometry an essential tool for quantum sensors and precision measurements. The performance of these interferometers is closely related to the operation of large wave packet separations. We present here a novel approach for atomic beam splitters based on the stroboscopic stabilization of quantum states in an accelerated optical lattice. The corresponding Floquet state is generated by optimal control protocols. In this way, we demonstrate an unprecedented Large Momentum Transfer (LMT) interferometer, with a momentum separation of 600 photon recoils (600 ℏk) between its two arms. Each LMT beam splitter is realized in a remarkably short time (2 ms) and is highly robust against the initial velocity dispersion of the wave packet and lattice depth fluctuations. Our study shows that Floquet engineering is a promising tool for exploring new frontiers in quantum physics at large scales, with applications in quantum sensing and testing fundamental physics.

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用于大规模原子干涉仪的最佳 Floquet 状态工程

对冷原子相干性的有效控制使原子干涉仪成为量子传感器和精密测量的重要工具。这些干涉仪的性能与大波包分离的操作密切相关。我们在此介绍一种基于加速光晶格中量子态频闪稳定的原子分束器新方法。相应的 Floquet 状态是通过最优控制协议产生的。通过这种方式，我们展示了一种前所未有的大动量传递（LMT）干涉仪，其两臂之间的动量间隔为 600 光子反冲（600 ℏk）。每个 LMT 分束器都是在极短的时间（2 毫秒）内实现的，并且对波包的初始速度分散和晶格深度波动具有很强的鲁棒性。我们的研究表明，Floquet 工程是探索大尺度量子物理新前沿的一个前景广阔的工具，可应用于量子传感和基础物理测试。

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来源期刊

Nature Communications Biological Science Disciplines-

CiteScore

24.90

自引率

2.40%

发文量

6928

审稿时长

3.7 months

期刊介绍： Nature Communications, an open-access journal, publishes high-quality research spanning all areas of the natural sciences. Papers featured in the journal showcase significant advances relevant to specialists in each respective field. With a 2-year impact factor of 16.6 (2022) and a median time of 8 days from submission to the first editorial decision, Nature Communications is committed to rapid dissemination of research findings. As a multidisciplinary journal, it welcomes contributions from biological, health, physical, chemical, Earth, social, mathematical, applied, and engineering sciences, aiming to highlight important breakthroughs within each domain.