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题名: Quantum state swapping via a qubit network with Hubbard interactions
作者: Yang, S. ;  Song, Z. ;  Sun, C. P.
刊名: PHYSICAL REVIEW B
出版日期: 2006
卷号: 73, 期号:19, 页码:-
关键词: ENTANGLEMENT
学科分类: Physics
通讯作者: Yang, S , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China
部门归属: Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: 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.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000237950400055
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5992
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Yang, S.,Song, Z.,Sun, C. P.. Quantum state swapping via a qubit network with Hubbard interactions[J]. PHYSICAL REVIEW B,2006,73(19):-.
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