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Quantum-state transfer via the ferromagnetic chain in a spatially modulated field
Shi, T; Li, Y; Song, Z; Sun, CP; Shi, T , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
2005
发表期刊PHYSICAL REVIEW A
ISSN1050-2947
卷号71期号:3页码:-
摘要We show that a perfect quantum-state transmission can be realized through a spin chain possessing the commensurate structure of an energy spectrum, which is matched with the corresponding parity. As an exposition of the mirror inversion symmetry discovered by Albanese (e-print quant-ph/0405029), the parity matched commensurability of the energy spectra helps us to present preengineered spin systems for quantum information transmission. Based on these theoretical analyses, we propose a protocol of near-perfect quantum-state transfer by using a ferromagnetic Heisenberg chain with uniform coupling constant, but an external parabolic magnetic field. The numerical results show that the initial Gaussian wave packet in this system with optimal field distribution can be reshaped near perfectly over a longer distance.
部门归属Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
学科领域Physics
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收录类别SCI
WOS记录号WOS:000228632100024
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被引频次:124[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/311006/13868
专题理论物理所SCI论文
通讯作者Shi, T , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
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GB/T 7714
Shi, T,Li, Y,Song, Z,et al. Quantum-state transfer via the ferromagnetic chain in a spatially modulated field[J]. PHYSICAL REVIEW A,2005,71(3):-.
APA Shi, T,Li, Y,Song, Z,Sun, CP,&Shi, T , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China..(2005).Quantum-state transfer via the ferromagnetic chain in a spatially modulated field.PHYSICAL REVIEW A,71(3),-.
MLA Shi, T,et al."Quantum-state transfer via the ferromagnetic chain in a spatially modulated field".PHYSICAL REVIEW A 71.3(2005):-.
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