Entangled and disentangled evolution for a single atom in a driven cavity

被引：23

作者：

Gea-Banacloche, J ^{[1
]}

Burt, TC

Rice, PR

Orozco, LA

机构：

[1] Univ Arkansas, Dept Phys, Fayetteville, AR 72701 USA

[2] Raytheon Co, Sci & Technol, Garland, TX 75042 USA

[3] Miami Univ, Dept Phys, Oxford, OH 45056 USA

[4] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.94.053603

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

For an atom in an externally driven cavity, we show that special initial states lead to near-disentangled atom-field evolution, and superpositions of these can lead to near maximally entangled states. Somewhat counterintutively, we find that (moderate) spontaneous emission in this system actually leads to a transient increase in entanglement beyond the steady-state value. We also show that a particular field correlation function could be used, in an experimental setting, to track the time evolution of this entanglement.

引用

页数：4

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