Cavity-Based Single Atom Preparation and High-Fidelity Hyperfine State Readout
Cavity-Based Single Atom Preparation and High-Fidelity Hyperfine State Readout
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DOI：
10.1103/physrevlett.104.203602
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发表时间：
2010-05-21
影响因子：
8.6
通讯作者：
Reichel, Jakob
中科院分区：
文献类型：
--
作者：
Gehr, Roger;Volz, Juegen;Reichel, Jakob
我们准备并检测与原子芯片上基于光纤的高精细空腔耦合的单个 Rb-87 原子的超精细状态。原子从玻色-爱因斯坦凝聚体中提取出来并被捕获在腔场的最大值处，从而产生可重复的强原子腔耦合。我们利用腔反射和透射信号来推断原子超精细态，在 100 μs 的读出时间内保真度超过 99.92%。检测后原子仍被捕获。
We prepare and detect the hyperfine state of a single Rb-87 atom coupled to a fiber-based high-finesse cavity on an atom chip. The atom is extracted from a Bose-Einstein condensate and trapped at the maximum of the cavity field, resulting in a reproducibly strong atom-cavity coupling. We use the cavity reflection and transmission signal to infer the atomic hyperfine state with a fidelity exceeding 99.92% in a readout time of 100 mu s. The atom is still trapped after detection.