Collective Quantum Jumps of Rydberg Atoms

被引：165

作者：

Lee, Tony E. ^{[1
]}

Haeffner, H. ^{[2
]}

Cross, M. C. ^{[1
]}

机构：

[1] CALTECH, Dept Phys, Pasadena, CA 91125 USA

[2] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 02期

关键词：

ENTANGLEMENT; BISTABILITY; DRIVEN; PHOTON;

D O I：

10.1103/PhysRevLett.108.023602

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study an open quantum system of atoms with a long-range Rydberg interaction, laser driving, and spontaneous emission. Over time, the system occasionally jumps between a state of low Rydberg population and a state of high Rydberg population. The jumps are inherently collective, and in fact, exist only for a large number of atoms. We explain how entanglement and quantum measurement enable the jumps, which are otherwise classically forbidden.

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页数：5

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