Two-mode excited entangled coherent states and their entanglement properties |
| |
| Authors: | Zhou Dong-Lin and Kuang Le-Man |
| |
| Affiliation: | Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, and Department of Physics, Hunan Normal University, Changsha 410081, China |
| |
| Abstract: | This paper introduces two types of two-mode excited entangledcoherent states (TMEECSs) $|Psi_{pm}(alpha,m,n)rangle$, studiestheir entanglement characteristics, and investigates the influenceof photon excitations on quantum entanglement. It shows that for thestate $|Ps_{+}(alpha,m,m)rangle$ the two-mode photon excitationsaffect seriously entanglement character while the state$|Ps_{-}(alpha,m,m)rangle$ is always a maximally entangled state,and shows how such states can be produced by using cavity quantumelectrodynamics and quantum measurements. It finds that theentanglement amount of the TMEECSs is larger than that of thesingle-mode excited entangled coherent states with the same photonexcitation number. |
| |
| Keywords: | photon excitations quantumentanglement entangled coherent states |
| 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 |
|
