ITP OpenIR  > 理论物理所2011年知识产出
Quantum Fisher information of the Greenberg-Horne-Zeilinger state in decoherence channels
Ma, J; Huang, YX; Wang, XG; Sun, CP; Ma, J (reprint author), Zhejiang Univ, Dept Phys, Zhejiang Inst Modern Phys, Hangzhou 310027, Peoples R China.
2011
发表期刊PHYSICAL REVIEW A
ISSN1050-2947
卷号84期号:2页码:22302
摘要Quantum Fisher information of a parameter characterizes the sensitivity of the state with respect to changes of the parameter. In this article, we study the quantum Fisher information of a state with respect to SU(2) rotations under three decoherence channels: the amplitude-damping, phase-damping, and depolarizing channels. The initial state is chosen to be a Greenberg-Horne-Zeilinger state of which the phase sensitivity can achieve the Heisenberg limit. By using the Kraus operator representation, the quantum Fisher information is obtained analytically. We observe the decay and sudden change of the quantum Fisher information in all three channels.
部门归属[Ma, Jian; Huang, Yi-xiao; Wang, Xiaoguang] Zhejiang Univ, Dept Phys, Zhejiang Inst Modern Phys, Hangzhou 310027, Peoples R China; [Sun, C. P.] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
关键词Statistical Distance Hilbert-space Sudden-death Entanglement Metrology Limit
学科领域Physics
资助者NSFC [11025527, 10874151, 10935010]; Ministry of Education ; NSFC [11025527, 10874151, 10935010]; Ministry of Education ; NSFC [11025527, 10874151, 10935010]; Ministry of Education ; NSFC [11025527, 10874151, 10935010]; Ministry of Education
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收录类别SCI
语种英语
资助者NSFC [11025527, 10874151, 10935010]; Ministry of Education ; NSFC [11025527, 10874151, 10935010]; Ministry of Education ; NSFC [11025527, 10874151, 10935010]; Ministry of Education ; NSFC [11025527, 10874151, 10935010]; Ministry of Education
WOS记录号WOS:000293373900006
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被引频次:83[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/14298
专题理论物理所2011年知识产出
通讯作者Ma, J (reprint author), Zhejiang Univ, Dept Phys, Zhejiang Inst Modern Phys, Hangzhou 310027, Peoples R China.
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GB/T 7714
Ma, J,Huang, YX,Wang, XG,et al. Quantum Fisher information of the Greenberg-Horne-Zeilinger state in decoherence channels[J]. PHYSICAL REVIEW A,2011,84(2):22302.
APA Ma, J,Huang, YX,Wang, XG,Sun, CP,&Ma, J .(2011).Quantum Fisher information of the Greenberg-Horne-Zeilinger state in decoherence channels.PHYSICAL REVIEW A,84(2),22302.
MLA Ma, J,et al."Quantum Fisher information of the Greenberg-Horne-Zeilinger state in decoherence channels".PHYSICAL REVIEW A 84.2(2011):22302.
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