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在连续空间中的单原子波包的现场成像

Joris Verstraten¹, Kunlun Dai¹, Maxime Dixmerias¹

¹Sorbonne Université, Laboratoire Kastler Brossel, ENS-Université PSL, CNRS, Collège de France, 24 rue Lhomond, 75005, Paris, France.

Physical review letters

|March 14, 2025

概括

研究人员拍摄了单原子波包在平面上膨胀的图像,证实了量子力学的预测. 他们还开发了一种方法,可以精确地将这些波包映射到光学格子上,用于量子气体显微镜.

科学领域:

量子物理学量子物理学是一种量子物理学.
原子物理原子物理
量子光学是一种量子光学.

背景情况:

观察和操纵单原子波包对于推进量子技术至关重要.
现有的方法难以准确地图像和控制光学格子中的扩展波函数.

研究的目的:

直接描绘扩展的单原子波包的空间分布和动态.
开发和验证用于将连续波函数投射到光学格子站点的协议.
建立连续量子多体系统的量子气体显微镜的基础.

主要方法:

在确定性地准备的单原子波包的现场成像.
使用量子气体显微镜技术进行单原子成像.
通过探测波函数的平方模量,开发一个受控投影协议.

主要成果:

观察到的波束膨胀和施罗丁格方程的预测之间非常一致.
展示了一种用于将延长波函数近乎完美的投射到光学格子站点上的协议.
成功成像了比格子间距大得多的波包.

结论:

这项研究提供了对自由波包扩张的直接,定量观察.
开发的投影协议是连续物理量子气体显微镜的关键一步.
这种方法提供了前所未有的访问互动量子系统的微观特性.

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