时间最优条件下任意两比特量子纠缠态的制备  

Time-Optimized Generation of Two-Qubit Entanglement States

作　　者：黄泽霞[1,2] 黄德才[3] 俞攸红[4] 

机构地区：[1]浙江工业大学信息学院,杭州310023 [2]绍兴文理学院元培学院信息与电子系,浙江绍兴312000 [3]浙江工业大学计算机科学与技术学院,软件学院,杭州310023 [4]浙江工业大学理学院,杭州310023

出　　处：《上海交通大学学报》2014年第5期663-667,673,共6页Journal of Shanghai Jiaotong University

基　　金：国家自然科学基金(10774131)资助项目

摘　　要：借助于海森堡模型,利用量子幺正门实现了量子状态幺正演化的时间最优调控.针对基态|00〉、|11〉、|01〉和|10〉,分析了均匀磁场作用下当时间最优时任意纠缠目标态的制备方法,提出了一种在时间最优条件下两比特量子纠缠态的制备方法,并通过理论分析与仿真实验验证了所提出方法的有效性.A time-optimized method to control the unitary time evolution in a quantum unitary gate was proposed using the Heisenberg model. For two classes of states ｜00〉,｜11〉and ｜01〉, ｜10〉, the time-opti- mized generation of any target entangled state under a uniform magnetic field was analyzed, and a novel strategy based on the time-optimized method to generate two qubit entangled states was suggested. The effectiveness of the proposed strategy was theoretically verified by simulations.

关 键 词：幺正门 纠缠态 时间最优 纠缠态制备 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]