基于腔QED实现相干腔场远程控制非门和纠缠交换  

Implementing Remote Controlled Not Gate of the Coherent State Cavity Field and Entanglement Swapping Via Cavity QED

作　　者：陈翔[1] 杨榕灿[1] 李洪才[1] 郑世才[1] 

机构地区：[1]福建师范大学物理与光电信息科技学院,福建福州350108

出　　处：《福建师范大学学报（自然科学版）》2008年第6期47-50,73,共5页Journal of Fujian Normal University：Natural Science Edition

基　　金：福建省省属高校项目(2007F5041)

摘　　要：提出一种利用原子和腔场的控制非门实现相干态腔场远程控制非门和无Bell基测量的纠缠交换的新方案,该方案是基于Ξ型三能级原子与相干态腔场的非共振相互作用.在作用过程中,腔场和原子没有交换能量,这有效抑制了腔场的消相干效应,并且根据当前的腔QED技术,该方案是有可能实现的.Proposes a new scheme , which is based on the non-resonance interaction between the E-type three-level atom and the coherent state cavity field, to implement remote controlled-not gate of the coherent cavity field and entanglement swapping without Bell-state measure via the CNOT gate of atom and cavity. In this process, since the cavity field does not exchange energy with the atoms , thus the decoherence due to the decay of the cavity can be effectively suppressed. So the protocol is experimentally feasible based on the current cavity QED technique.

关 键 词：远程控制非门 纠缠交换 腔QED 

分 类 号：O431[机械工程—光学工程]