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Quantum-state transfer via the ferromagnetic chain in a spatially modulated field
文献类型：期刊论文
| 作者 | Sun, CP ; Shi, T; Li, Y; Song, Z; Shi, T , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
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| 刊名 | PHYSICAL REVIEW A
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| 出版日期 | 2005 |
| 卷号 | 71期号:3页码:- |
| ISSN号 | 1050-2947 |
| 英文摘要 | 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. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000228632100024 |
| 公开日期 | 2012-08-30 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/13868]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Shi, T , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Sun, CP,Shi, T,Li, Y,et al. Quantum-state transfer via the ferromagnetic chain in a spatially modulated field[J]. PHYSICAL REVIEW A,2005,71(3):-. |
| APA | Sun, CP,Shi, T,Li, Y,Song, Z,&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 | Sun, CP,et al."Quantum-state transfer via the ferromagnetic chain in a spatially modulated field".PHYSICAL REVIEW A 71.3(2005):-. |
入库方式： OAI收割
来源：理论物理研究所
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