标题： 通过种群和发射光测量探测冷原子系综中的亚辐射动力学 显示英文标题

标题： Probing subradiant dynamics in cold atomic ensembles via population and emitted light measurements

摘要： 在本信中，我们报告了对超冷174Yb原子云中亚辐射激发态种群的时间和空间分辨测量。 我们使用一种耗尽成像技术，利用碱土金属类似原子的V型内部能级结构，直接观察激发态种群的时间分辨空间分布。 我们通过激发态种群和散射光强度来表征亚辐射模式的衰减动力学，发现与双能级原子系综模拟的数值预测有良好的定量一致性。 显示英文摘要

摘要： In this letter, we report on the time- and space-resolved measurement of subradiant excited state population in an ultra-cold atomic cloud of 174Yb atoms. We use a depletion imaging technique that exploits the V-type internal energy structure of alkaline-earth-like atoms to directly observe the time-resolved spatial distribution of excited state population. We characterize the decay dynamics of the subradiant modes using both the excited state population and scattered light intensity, finding good quantitative agreement with numerical predictions from simulations of two-level atomic ensembles.