Pairwise entanglement and local polarization of Heisenberg model
文献类型：期刊论文
| 作者 | Xi, XQ ; Zhang, T ; Yue, RH ; liu, WM |
| 刊名 | SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY
 |
| 出版日期 | 2008 |
| 卷号 | 51期号:10页码:1515 |
| 关键词 | QUANTUM INFORMATION QUBITS |
| ISSN号 | 1672-1799 |
| 通讯作者 | Xi, XQ (reprint author), Xian Inst Post & Telecommun, Dept Appl Math & Phys, Xian 710061, Peoples R China. |
| 中文摘要 | The characteristics of pairwise entanglement and local polarization (LP) are discussed by studying the ground state (states) of the Heisenberg XX model. The results show that: the ground state (states) is (are) composed of the micro states with the minimal polarization (0 for even qubit and 1/2 for odd qubit); LP and the probability of the micro state have an intimate relation, i.e. the stronger the LP, the smaller the probability, and the same LP corresponds to the same probability; the pairwise entanglement of the ground state is the biggest in all eigenvectors. It is found that the pairwise entanglement is decreased by the state degeneracy and the system size. The concurrence approaches a fixed value of about 0.3412 (for odd-qubit chain) or 0.3491 (for even-qubit chain) if the qubit number is large enough. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [10547008, 90403034, 90403019, 90406017, 60525417]; National Key Basic Research Special Foundation of China [2005CB724508, 2006CB921400]; Foundation of Xi'an Institute of Post and Telecommunications [105-0414]; Natural Science Foundation of Shanxi Province [2004A15] |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/50560]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Xi, XQ,Zhang, T,Yue, RH,et al. Pairwise entanglement and local polarization of Heisenberg model[J]. SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,2008,51(10):1515. |
| APA | Xi, XQ,Zhang, T,Yue, RH,&liu, WM.(2008).Pairwise entanglement and local polarization of Heisenberg model.SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,51(10),1515. |
| MLA | Xi, XQ,et al."Pairwise entanglement and local polarization of Heisenberg model".SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY 51.10(2008):1515. |
入库方式： OAI收割
来源：物理研究所
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