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Quantum state swapping via a qubit network with Hubbard interactions
Yang, S.; Song, Z.; Sun, C. P.; Yang, S , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China
2006
发表期刊PHYSICAL REVIEW B
ISSN1098-0121
卷号73期号:19页码:-
摘要We study the quantum state transfer (QST) in a class of qubit networks with on-site Coulomb interaction, which are described by the generalized Hubbard model with engineered hopping strengths. It is proved that the N-site system of two electrons with opposite spins can be rigorously reduced into N one dimensional engineered single Bloch electron models with central potential barrier. With this observation, we find that such system can perform a perfect QST, the quantum swapping between two distant electrons with opposite spins. Numerical results show that such QST and the resonant tunneling occur for the optimal on-site repulsive interaction.
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Entanglement
学科领域Physics
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收录类别SCI
WOS记录号WOS:000237950400055
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被引频次:8[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/311006/5992
专题理论物理所SCI论文
通讯作者Yang, S , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China
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GB/T 7714
Yang, S.,Song, Z.,Sun, C. P.,et al. Quantum state swapping via a qubit network with Hubbard interactions[J]. PHYSICAL REVIEW B,2006,73(19):-.
APA Yang, S.,Song, Z.,Sun, C. P.,&Yang, S , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.(2006).Quantum state swapping via a qubit network with Hubbard interactions.PHYSICAL REVIEW B,73(19),-.
MLA Yang, S.,et al."Quantum state swapping via a qubit network with Hubbard interactions".PHYSICAL REVIEW B 73.19(2006):-.
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