偶数个多原子Greenberger-Horne-Zerlinger态的制备(英文)  

GENERATION OF EVEN-NUMBER-ATOM GREENBERGER-HORNE-ZERLINGER STATES

作　　者：陈昌永[1] 

机构地区：[1]湖南省娄底师范高等专科学校物理系,娄底417000

出　　处：《光子学报》2002年第7期799-801,共3页Acta Photonica Sinica

摘　　要：提出了一种制备偶数个多原子 Greenberger- Horne- Zerlinger态的方案 ,它是基于原子 -腔场相互作用 .首先 n个分离的腔初始时处于真空态 ,通过双光子转移 ,把 n个腔制备成数态 | 2〉和真空态 | o〉的缠结态 .随后 ,与腔场发生共振相互作用的 2 n个等同的原子被分别送入 n个腔 ,通过相互作用后 ,2 n个原子处于 GHZ态 ,而A scheme for generating even number atom Greenberger Horne Zerlinger(GHZ) state is presented.It is based on atom cavity field interaction,n separated cavities are all initially the vacuum states,the entanglement of these cavities is prepared by a two photon transition (as cascade if two off resonant dipole transitions).Subsequently,even number(2n) identical two level atoms,resonant with the cavities,are sent through the cavities,respectively.After interactions,the even number(2n) atoms are the GHZ states,while 2n cavities are left in the vacuum states.

关 键 词：偶数个多原子 制备 原子-腔场相互作用 Greenberger-Horne-Zerlinger态 缠结态 真空态 量子光学 

分 类 号：O431.2[机械工程—光学工程]