利用3-Λ型五能级原子介质操控纠缠态  

Manipulating Some Entangled States in the Three-Λ Atomic Medium

作　　者：李转[1] 

机构地区：[1]装甲兵工程学院基础部,北京100072

出　　处：《山西大学学报（自然科学版）》2012年第3期497-500,共4页Journal of Shanxi University(Natural Science Edition)

基　　金：装甲兵工程学院青年创新基金(2011cj005)

摘　　要：通过分析3-Λ型五能级原子系统的暗态极化子,讨论三模量子场与原子介质的信息转换过程以及三个信号场之间的信息转换过程.研究结果表明,利用3-Λ型五能级原子系统,可以存储三模量子态,从理论上解释了三模量子信息在介质中的"写入"和"读出"过程.另外利用3-Λ型五能级原子系统还可以操控某些纠缠态,如实现纠缠态的生成、存储、读出、转换等.Based on the three-Λ dark-state polaritons,quantum information can be exchanged not only between the three-signal fields and the collective atoms,but also among the three signal fields.Some three-mode quantum states can be stored in the three-Λ atomic ensemble,thus the quantum information of the three-signal field can be written and read in the medium.Furthermore,with this scheme some tripartite entangled states can be generated,stored,retrieved,transformed and so on,thus the ability of the manipulation of entangled states is improved.

关 键 词：暗态极化子 量子信息 纠缠态 

分 类 号：O43[机械工程—光学工程]