New method for calculating the Berry connection in atom-molecule systems
文献类型：期刊论文
| 作者 | Cui, FC ; Wu, BJ |
| 刊名 | CHINESE PHYSICS B
 |
| 出版日期 | 2012 |
| 卷号 | 21期号:11 |
| 关键词 | QUANTUM-MECHANICS PHASE |
| ISSN号 | 1674-1056 |
| 通讯作者 | Cui, FC (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | In the mean-field theory of atom molecule systems, where the bosonic atoms combine to form molecules, there is no usual U(1) symmetry, which presents an apparent hurdle for calculating the Berry connection in these systems. We develop a perturbation expansion method of Hannay's angle suitable for calculating the Berry curvature in the atom molecule systems. With this Berry curvature, the Berry connection can be computed naturally. We use a three-level atom molecule system to illustrate our results. In particular, with this method, we compute the curvature for Hannay's angle analytically, and compare it to the Berry curvature obtained with the second-quantized model of the same system. An excellent agreement is found, indicating the validity of our method. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [10825417] |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/49851]  |
| 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 | Cui, FC,Wu, BJ. New method for calculating the Berry connection in atom-molecule systems[J]. CHINESE PHYSICS B,2012,21(11). |
| APA | Cui, FC,&Wu, BJ.(2012).New method for calculating the Berry connection in atom-molecule systems.CHINESE PHYSICS B,21(11). |
| MLA | Cui, FC,et al."New method for calculating the Berry connection in atom-molecule systems".CHINESE PHYSICS B 21.11(2012). |
入库方式： OAI收割
来源：物理研究所
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