Observation of Coherent Coupling between Super- and Subradiant States of an Ensemble of Cold Atoms Collectively Coupled to a Single Propagating Optical Mode.
Observation of Coherent Coupling between Super- and Subradiant States of an Ensemble of Cold Atoms Collectively Coupled to a Single Propagating Optical Mode.
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集体耦合到单个传播光模的冷原子系的超辐射态和次辐射态之间相干耦合的观察。
DOI：
10.1103/physrevlett.128.203601
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发表时间：
2021
影响因子：
8.6
通讯作者：
J. Volz
中科院分区：
文献类型：
--
作者：
R. Pennetta;Daniel Lechner;M. Blaha;A. Rauschenbeutel;P. Schneeweiss;J. Volz
我们讨论了通过一个单一的传播光学模式耦合的原子系综的量子态的演化。我们从理论上证明了N个原子的量子态在单激发态下通过所有N-1个相对于传播模为亚辐射态的态而演化，其中N个原子最初是在定时迪凯态中制备的.我们预测这一过程会发生任何原子数和任何原子光耦合强度。这些发现得到了冷铯原子耦合到光学晶体的倏逝场进行的测量的支持。我们通过实验观察到的合奏通过前两个subradiant状态的状态的演变，导致突然的，暂时的开关的光功率发射到太阳能电池。我们的结果有助于从根本上理解集体原子-光相互作用，并适用于所有的物理系统，其描述涉及定时迪凯状态。
We discuss the evolution of the quantum state of an ensemble of atoms that are coupled via a single propagating optical mode. We theoretically show that the quantum state of N atoms, which are initially prepared in the timed Dicke state, in the single excitation regime evolves through all the N-1 states that are subradiant with respect to the propagating mode. We predict this process to occur for any atom number and any atom-light coupling strength. These findings are supported by measurements performed with cold cesium atoms coupled to the evanescent field of an optical nanofiber. We experimentally observe the evolution of the state of the ensemble passing through the first two subradiant states, leading to sudden, temporary switch-offs of the optical power emitted into the nanofiber. Our results contribute to the fundamental understanding of collective atom-light interaction and apply to all physical systems, whose description involves timed Dicke states.
影响因子：
2.9
作者：
Le Kien, F;Gupta, SD;Hakuta, K
通讯作者：
Hakuta, K