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Shi, T; Li, Y; Song, Z; Sun, CP; Shi, T , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
Quantum-state transfer via the ferromagnetic chain in a spatially modulated field
发表期刊PHYSICAL REVIEW A
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.
2005
ISSN1050-2947
卷号71期号:3页码:-
学科领域Physics
收录类别SCI
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13868
专题理论物理所科研产出_SCI论文
通讯作者Shi, T , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
推荐引用方式
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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