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arXiv 1807.02871cond-mat.quant-gasquant-ph
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超冷原子波函数显微镜

A Wavefunction Microscope for Ultracold Atoms

Sarthak Subhankar, Yang Wang, Tsz-Chun Tsui, Steven L. Rolston, James V. Porto

摘要:

使用超冷原子的量子模拟通常创建具有光学长度尺度的结构的原子波函数,其中直接成像受到衍射极限的影响。类似于生物学应用中光学显微镜的进步,我们使用非线性原子响应来超越衍射极限。利用量子干涉,我们展示了成像与超分辨率的$λ/100$和优秀的时间分辨率为500纳秒。我们通过测量光晶格晶胞内原子的系综平均波函数来表征我们的显微镜的性能,并观察原子被激发成周期性运动的动力学。这种方法可以很容易地应用于任何原子或分子系统的成像,只要它拥有一个三能级系统。

英文摘要:

Quantum simulations with ultracold atoms typically create atomic wavefunctions with structures at optical length scales, where direct imaging suffers from the diffraction limit. In analogy to advances in optical microscopy for biological applications, we use a non-linear atomic response to surpass the diffraction limit. Exploiting quantum interference, we demonstrate imaging with super-resolution of $λ/100$ and excellent temporal resolution of 500 ns. We characterize our microscope's performance by measuring the ensemble averaged wavefunction of atoms within the unit cells of an optical lattice, and observe the dynamics of atoms excited into periodic motion. This approach can be readily applied to image any atomic or molecular system, as long as it hosts a three-level system.

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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