Cavity-Based Single Atom Preparation and High-Fidelity Hyperfine State Readout

被引：106

作者：

Gehr, Roger ^{[1
]}

Volz, Juegen ^{[1
]}

Dubois, Guilhem ^{[1
]}

Steinmetz, Tilo ^{[1
]}

Colombe, Yves ^{[1
]}

Lev, Benjamin L. ^{[1
]}

Long, Romain ^{[1
]}

Esteve, Jerome ^{[1
]}

Reichel, Jakob ^{[1
]}

机构：

[1] UPMC, CNRS, ENS, Lab Kastler Brossel, F-75005 Paris, France

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 20期

关键词：

NEUTRAL ATOMS; ENTANGLEMENT; PAIRS;

D O I：

10.1103/PhysRevLett.104.203602

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：4

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