| 引用本文: | 商燕,王海涛,隋岩,丛爽.双量子系统最大纠缠态制备的两种控制方法[J].控制理论与应用,2017,34(7):965~973.[点击复制] |
| SHANG Yan,WANG Hai-tao,SUI Yan,CONG Shuang.Two control methods for the maximum entangled states preparations of a double quantum system[J].Control Theory and Technology,2017,34(7):965~973.[点击复制] |
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| 双量子系统最大纠缠态制备的两种控制方法 |
| Two control methods for the maximum entangled states preparations of a double quantum system |
| 摘要点击 2281 全文点击 2220 投稿时间：2016-12-06 修订日期：2017-03-30 |
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| DOI编号 10.7641/CTA.2017.60923 |
| 2017,34(7):965-973 |
| 中文关键词 纠缠态 制备 半反直觉脉冲序列 π脉冲序列 |
| 英文关键词 entangled state preparation half-counterintuitive pulse sequences π pulse sequences |
| 基金项目 国家自然科学基金;天地一体化信息技术国家重点实验室开放基金项目 |
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| 中文摘要 |
| 分别采用两种脉冲序列, 对由两个自旋1/2 粒子组成的四能级量子系统进行最大纠缠态的制备. 基于部分受激拉曼绝热通道技术, 设计了半反直觉脉冲序列; 同时设计了基于面积控制的$\pi$ 脉冲控制序列. 通过系统仿真实验, 在参数选取对纠缠态制备性能影响分析的基础上, 详细地给出了纠缠态制备中各个参数的优化过程, 包括不同参数对纠缠态制备过程中系统几率影响的分析, 纠缠态制备最佳参数的选取, 以及制备系统最大纠缠态或贝尔(Bell) 基态控制参数值的确定. |
| 英文摘要 |
| For a four-level quantum system which is composed of two spin-1/2 particles, we use two different kinds of pulse sequences to prepare the maximum entangled states. Based on the fractional stimulated Raman adiabatic passage method, we design the half-counterintuitive pulse sequences. At the same time, the $\pi$ pulse sequences which are based on pulse area control are also designed. We analyze the effect of different parameter values on the preparation performance of entangled states according to the system simulation experimental results. The optimization process of each parameter during the entangled state preparation is given in detail including analyzing the effect of different parameters on the system probability during the preparation of entangled state, selecting the best parameters for entanglement states''preparations and determining the control parameter values for the maximum entanglement states preparations, and Bell ground states preparations. |
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