Dynamic generation of entangling wave packets in XY spin system with decaying long-range couplings
文献类型：期刊论文
| 作者 | Yang Shuo; Song Zhi; Sun ChangPu ; Yang, S , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
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| 刊名 | SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY
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| 出版日期 | 2008 |
| 卷号 | 51期号:1页码:45-55 |
| 关键词 | Quantum Chains Entanglement State |
| ISSN号 | 1672-1799 |
| 英文摘要 | The dynamic generation of spin entanglement between two distant sites in a XY model with 1/r(2) decay long-range couplings was studied. Due to the linear dispersion relation epsilon(k)similar to|k| of magnons in such a model, a well-located spin state can be dynamically split into two moving entangled local wave packets without changing their shapes. Interestingly, when such two wave packets meet at the diametrically opposite site after the fast period tau = N pi/J, the initial well-located state is completely recurrent. Numerical calculation was performed to confirm the analytical result even if the ring system of sizes N up to several thousands is considered. The truncation approximation for the coupling strengths was also studied. Numerical simulation shows that the above conclusions still hold even if the range of the coupling strength is truncated to a relatively short scale compared with the size of the spin system. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000251412500006 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5606]  |
| 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 | Yang, S , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang Shuo,Song Zhi,Sun ChangPu,et al. Dynamic generation of entangling wave packets in XY spin system with decaying long-range couplings[J]. SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,2008,51(1):45-55. |
| APA | Yang Shuo,Song Zhi,Sun ChangPu,&Yang, S , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.(2008).Dynamic generation of entangling wave packets in XY spin system with decaying long-range couplings.SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,51(1),45-55. |
| MLA | Yang Shuo,et al."Dynamic generation of entangling wave packets in XY spin system with decaying long-range couplings".SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY 51.1(2008):45-55. |
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来源：理论物理研究所
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