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Quantum-state transfer characterized by mode entanglement
Qian, XF; Li, Y; Song, Z; Sun, CP; Song, Z , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
2005
发表期刊PHYSICAL REVIEW A
ISSN1050-2947
卷号72期号:6页码:-
摘要We study the quantum-state transfer (QST) of a class of tight-bonding Bloch electron systems with mirror symmetry by considering the mode entanglement. Some rigorous results are obtained to reveal the intrinsic relationship between the fidelity of QST and the mirror mode concurrence (MMC), which is defined to measure the mode entanglement with a certain spatial symmetry and is just the overlap of a proper wave function with its mirror image. A complementarity is discovered as the maximum fidelity is accompanied by a minimum of the MMC. At the instant that is just half of the characteristic time required to accomplish a perfect QST, the MMC can reach its maximum value of 1. A large class of perfect QST models with a certain spectral structure is discovered to support our analytical results.
部门归属Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Heisenberg Spin Chains
学科领域Physics
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收录类别SCI
WOS记录号WOS:000234334900058
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被引频次:25[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/311006/13711
专题理论物理所1978-2010年知识产出
通讯作者Song, Z , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
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GB/T 7714
Qian, XF,Li, Y,Song, Z,et al. Quantum-state transfer characterized by mode entanglement[J]. PHYSICAL REVIEW A,2005,72(6):-.
APA Qian, XF,Li, Y,Song, Z,Sun, CP,&Song, Z , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China..(2005).Quantum-state transfer characterized by mode entanglement.PHYSICAL REVIEW A,72(6),-.
MLA Qian, XF,et al."Quantum-state transfer characterized by mode entanglement".PHYSICAL REVIEW A 72.6(2005):-.
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