ITP OpenIR  > 理论物理所科研产出  > SCI论文
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.
Quantum Fisher information of the Greenberg-Horne-Zeilinger state in decoherence channels
Source PublicationPHYSICAL REVIEW A
Language英语
KeywordStatistical Distance Hilbert-space Sudden-death Entanglement Metrology Limit
AbstractQuantum 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.
2011
ISSN1050-2947
Volume84Issue:2Pages:22302
Subject AreaPhysics
Indexed BySCI
Funding OrganizationNSFC [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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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/14298
Collection理论物理所科研产出_SCI论文
Corresponding AuthorMa, J (reprint author), Zhejiang Univ, Dept Phys, Zhejiang Inst Modern Phys, Hangzhou 310027, Peoples R China.
Recommended Citation
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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