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基于反馈的两比特相干和纠缠控制
  • ISSN号：1674-2273
  • 期刊名称：《合肥师范学院学报》
  • 时间：0
  • 分类：O413[理学—理论物理;理学—物理]
  • 作者机构：[1]安徽大学物理与材料科学学院,安徽合肥230601, [2]合肥师范学院电子信息工程学院,安徽合肥230061
  • 相关基金：国家自然科学基金（11274010,11204002,61073048,61370090）,教育部高等学校博士学科点专项科研基金（20113401110002）,教育部科学技术研究重点项目（210092）,安徽省人事厅学术和技术带头人后备人选择优资助项目
作者： 周玲[1], 董俊[1], 杨名[1], 曹卓良[2]
关键词： 量子相干, 量子纠缠, 量子跃迁反馈, quantum coherence, quantum entanglement , Jump--based quantum feedback
中文摘要：

基于量子跃迁反馈技术和数值模拟的方法,详细讨论了不同量子跃迁反馈方案对处于不同初始态（一般的纯的直积态和混合纠缠态）的两量子比特系统（一个比特有消相干而另一个没有）的相干性和纠缠动力学的影响;对应于不同初始态的量子系统给出了抑制消相干和消纠缠的反馈方案.本文所提出的基于反馈的量子相干和量子纠缠控制方案对于抑制两比特量子系统的消相干和消纠缠具有重要的理论参考价值和实际意义.

英文摘要：

Based on quantum feedback techniques and numerical simulation methods, we studied the quan- tum coherence and entanglement dynamics of two quhits（one of them is subject to decoherence while the other qubit is under the control）. Here, we focused on the effects of the initial states （general pure product states and mixed entangled states） and the feedback Hamiltonians on the coherence and entanglement dynamics. This study is of great importance for overcoming decoherence and disentanglement of two--qubit quantum systems. We have shown the possibility to improve entanglement and coherence in two--qubit quantum systems by appropriately choosing the feedback Hamiltonians for different initial state cases.

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期刊信息
  • 《合肥师范学院学报》
  • 主管单位:安徽省教育厅
  • 主办单位:合肥师范学院
  • 主编：曹卓良
  • 地址：合肥市经济开发区莲花路1688号
  • 邮编：230061
  • 邮箱：wkxb@hftc.edu.cn
  • 电话：
  • 国际标准刊号：ISSN：1674-2273
  • 国内统一刊号：ISSN：34-1303/G4
  • 邮发代号:26-59
  • 获奖情况:
  • 安徽省优秀社科学报、全国优秀社科期刊、全国教育...
  • 国内外数据库收录:
  • 被引量:2245