| Quantum entanglement in the system of a moving V-type three-level atom interacting with the SU（1,1）-related coherent fields |
| |
| 引用本文： | 胡要花,方卯发,廖湘萍.Quantum entanglement in the system of a moving V-type three-level atom interacting with the SU（1,1）-related coherent fields[J].中国物理 B,2007,16(5):1344-1350. |
| |
| 作者姓名： | 胡要花 方卯发 廖湘萍 |
| |
| 作者单位： | College of Physics and Information Science,
Hunan Normal University, Changsha 410081, China |
| |
| 基金项目： | Project supported by the National Natural Science
Foundation of China (Grant No 10374025) and by Hunan Provincial
Natural Science Foundation of China (Grant No~06JJ4003). |
| |
| 摘 要： | In a system with a moving V-type three-level atom interacting with
the SU(1,1)-related coherent fields,
we investigate the entanglement between the moving three-level atom
and the SU(1,1)-related coherent fields by
using the quantum-reduced entropy, and that
between the SU(1,1)-related
coherent fields by using the quantum relative
entropy of entanglement. It is shown that the two kinds of entanglement
are dependent on the atomic motion and
exhibit the periodic evolution with a
period of 2π/p. The maximal atom--field qutrit entanglement
state can be prepared, and the entanglement preservation
of the SU(1,1)-related coherent fields
can be realized in the interacting process
via the appropriate selection of system
parameters and interaction time.
|
| 关 键 词： | V型三能级原子 量子纠缠 相干光场 相互作用 量子相对熵 |
| 收稿时间： | 2006-05-29 |
| 修稿时间： | 2006-05-292006-08-25 |
Quantum entanglement in the system of a moving V-type three-level atom interacting with the SU(1,1)-related coherent fields |
| |
| Hu Yao-Hu,Fang Mao-Fa and Liao Xiang-Ping.Quantum entanglement in the system of a moving V-type three-level atom interacting with the SU(1,1)-related coherent fields[J].Chinese Physics B,2007,16(5):1344-1350. |
| |
| Authors: | Hu Yao-Hu Fang Mao-Fa and Liao Xiang-Ping |
| |
| Affiliation: | College of Physics and Information Science, Hunan Normal University, Changsha 410081, China |
| |
| Abstract: | In a system with a moving V-type three-level atom interacting with
the SU(1,1)-related coherent fields,
we investigate the entanglement between the moving three-level atom
and the SU(1,1)-related coherent fields by
using the quantum-reduced entropy, and that
between the SU(1,1)-related
coherent fields by using the quantum relative
entropy of entanglement. It is shown that the two kinds of entanglement
are dependent on the atomic motion and
exhibit the periodic evolution with a
period of 2π/p. The maximal atom--field qutrit entanglement
state can be prepared, and the entanglement preservation
of the SU(1,1)-related coherent fields
can be realized in the interacting process
via the appropriate selection of system
parameters and interaction time. |
| |
| Keywords: | three-level atoms SU(1 1)-related coherent fields entanglement reduced entropy relative entropy |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
|
点击此处可从《中国物理 B》下载免费的PDF全文 |
