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Qian, XF; Li, Y; Song, Z; Sun, CP; Song, Z , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
Quantum-state transfer characterized by mode entanglement
Source PublicationPHYSICAL REVIEW A
KeywordHeisenberg Spin Chains
AbstractWe 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.
2005
ISSN1050-2947
Volume72Issue:6Pages:-
Subject AreaPhysics
Indexed BySCI
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Cited Times:25[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/13711
Collection理论物理所科研产出_SCI论文
Corresponding AuthorSong, Z , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
Recommended Citation
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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