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Chaos and quantum Fisher information in the quantum kicked top
  • ISSN号：1674-1056
  • 期刊名称：《中国物理B：英文版》
  • 时间：0
  • 分类：O413[理学—理论物理;理学—物理] TJ760.6[兵器科学与技术—武器系统与运用工程]
  • 作者机构：[1]Department of Physics,Changchun University of Science and Technology, Zhejiang Institute of Modern Physics,Department of Physics,Zhejiang University
  • 相关基金：Project supported by National Natural Science Foundation of China （Grant Nos.11025527, 10874151, and 10935010）.
作者： 王晓茜, 马健, 张喜和, 王晓光
关键词： 量子信息, Fisher信息, 顶部, 混沌, 估计问题, 信息检测, 系统, 纠缠, quantum information, quantum kicked top, quantum Fisher information, quantum chaos
中文摘要：

Quantum Fisher information is related to the problem of parameter estimation.Recently,a criterion has been proposed for entanglement in multipartite systems based on quantum Fisher information.This paper studies the behaviours of quantum Fisher information in the quantum kicked top model,whose classical correspondence can be chaotic.It finds that,first,detected by quantum Fisher information,the quantum kicked top is entangled whether the system is in chaotic or in regular case.Secondly,the quantum Fisher information is larger in chaotic case than that in regular case,which means,the system is more sensitive in the chaotic case.

英文摘要：

Quantum Fisher information is related to the problem of parameter estimation. Recently, a criterion has been proposed for entanglement in multipartite systems based on quantum Fisher information. This paper studies the behaviours of quantum Fisher information in the quantum kicked top model, whose classical correspondence can be chaotic. It finds that, first, detected by quantum Fisher information, the quantum kicked top is entangled whether the system is in chaotic or in regular case. Secondly, the quantum Fisher information is larger in chaotic case than that in regular case, which means, the system is more sensitive in the chaotic case.

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期刊信息
  • 《中国物理B：英文版》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国物理学会和中国科学院物理研究所
  • 主编：欧阳钟灿
  • 地址：北京 中关村 中国科学院物理研究所内
  • 邮编：100080
  • 邮箱：
  • 电话：010-82649026 82649519
  • 国际标准刊号：ISSN：1674-1056
  • 国内统一刊号：ISSN：11-5639/O4
  • 邮发代号:
  • 获奖情况:
  • 国内外数据库收录:
  • 被引量:406