一个特殊五粒子纠缠态的制备方案（英文）  

A scheme for preparing special five-particle entangled state

作　　者：张瑾[1] 严飞[1] ZHANG din YAN Fei(School of Mathematics and Physics, Anhui Jianzhu University, Hefei 230022, Chin)

机构地区：[1]安徽建筑大学数理学院,安徽合肥230022

出　　处：《量子电子学报》2017年第4期462-466,共5页Chinese Journal of Quantum Electronics

基　　金：Supported by Doctoral Foundation of Anhui Jianzhu University,2015-095~~

摘　　要：实现不同的量子信息过程通常需要不同的纠缠态,一个特殊的五粒子纠缠态已被证明可用于量子隐形传态、量子态共享以及量子密集编码等多个量子信息过程。基于腔量子电动力学,提出此特殊五粒子纠缠态的制备方案。选择原子和腔场处于一定的初始态,让多个原子在腔场中发生相互作用,选择相互作用时间,通过经典的幺正变换实现将五个原子制备于特殊的纠缠态。整个制备过程中原子和腔场之间没有能量的交换,无需进行任何量子测量,这使得该方案在实验上更易实现。Different entangled states are usually required for realization of different quantum information processes. A special five-particle entangled state was proved to be used in several quantum information processes such as quantum teleportation, quantum state sharing and quantum dense coding. Based on cavity quantum electrodynamics, a preparation scheme of the special five-particle entangled state is proposed. The atoms and cavity field are chosen in a certain initial state. Multiple atoms interact with each other in cavity field and the interaction time is selected. By means of the classical unitary transformation, the five atoms are prepared in a special entangled state. There is no energy exchange between the atoms and cavity field during the whole preparation process, and no quantum measurement is needed, which makes the scheme more easily implemented in experiment.

关 键 词：量子光学 纠缠态制备 腔量子电动力学 原子和腔场相互作用 

分 类 号：O431[机械工程—光学工程]