Entanglement concentration for multi-atom GHZ class state via cavity QED |
| |
Authors: | Jiang Chun-Lei Fang Mao-Fa and Zheng Xiao-Juan |
| |
Institution: | College of Physics and Information Science,Hunan Normal University, Changsha 410081, China |
| |
Abstract: | In this paper, we propose a physical scheme to concentrate non-maximally entangled
atomic pure states by using atomic collision in a far-off-resonant cavity. The most
distinctive advantage of our scheme is that the non-maximally entangled atoms may be
far from or near each other and their degree of entanglement can be maximally
amplified. The photon-number-dependent parts in the effective Hamiltonian are
cancelled with the assistance of a strong classical field, thus the scheme is
insensitive to both the cavity decay and the thermal field. |
| |
Keywords: | entangled atomic states GHZ
state concentration cavity quantum electrodynamics |
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 |