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arXiv 2201.09590cond-mat.quant-gasphysics.atom-phquant-ph
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超冷里德伯激发原子 Mott 绝缘体中的超快多体动力学

Ultrafast Many-Body Dynamics in an Ultracold Rydberg-Excited Atomic Mott Insulator

V. Bharti, S. Sugawa, M. Mizoguchi, M. Kunimi, Y. Zhang, S. de Léséleuc, T. Tomita, T. Franz, M. Weidemüller, K. Ohmori

AI总结:

该研究在三维单位填充原子 Mott 绝缘体的里德伯激发晶格中,用阿秒精度 Ramsey 干涉观测皮秒多体动力学,并证明需纳入量子涨落,为模拟强关联电子动力学提供平台。

摘要:

我们报告了在由三维单位填充原子 Mott 绝缘体制备的、经里德伯激发且空间有序的超冷原子中,对超快非平衡多体电子动力学的观测与控制。通过在我们的里德伯原子系统中实施具有阿秒精度的时域 Ramsey 干涉测量,我们观测到皮秒尺度的超快多体动力学;该动力学本质上由光学晶格中长程相互作用原子之间多体关联的出现和演化所支配。我们采用不同理论方法分析观测结果,发现要描述所观测到的动力学,必须在半经典描述之外纳入量子涨落。我们的里德伯晶格平台结合对环境噪声具有鲁棒性的超快方法,为在合成超冷原子晶体中利用长程范德瓦耳斯相互作用和共振偶极-偶极相互作用,模拟直至电荷重叠区域的强关联电子动力学打开了大门。

英文摘要:

We report the observation and control of ultrafast non-equilibrium many-body electron dynamics in Rydberg-excited spatially-ordered ultracold atoms created from a three-dimensional unity-filling atomic Mott insulator. By implementing time-domain Ramsey interferometry with attosecond precision in our Rydberg atomic system, we observe picosecond-scale ultrafast many-body dynamics that is essentially governed by the emergence and evolution of many-body correlations between long-range interacting atoms in an optical lattice. We analyze our observations with different theoretical approaches and find that quantum fluctuations have to be included beyond semi-classical descriptions to describe the observed dynamics. Our Rydberg lattice platform combined with an ultrafast approach, which is robust against environmental noises, opens the door for simulating strongly-correlated electron dynamics by long-range van der Waals interaction and resonant dipole-dipole interaction to the charge-overlapping regime in synthetic ultracold atomic crystals.

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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