Quasienergies and Floquet states of two weakly coupled Bose-Einstein condensates under periodic driving
文献类型：期刊论文
| 作者 | Luo, XB ; Xie, QT ; Wu, BA |
| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2008 |
| 卷号 | 77期号:5 |
| ISSN号 | 1050-2947 |
| 中文摘要 | We investigate the quasienergies and Floquet states of two weakly coupled Bose-Einstein condensates driven by a periodic force. The quasienergies and Floquet states of this system are computed within two different theoretical frameworks: the mean-field model and the second-quantized model. The mean-field approach reveals a triangular structure in the quasienergy band. Our analysis of the corresponding Floquet states shows that this triangle signals the onset of a localization phenomenon, which can be regarded as a generalization of the well-known phenomenon called coherent destruction of tunneling. With the second-quantized model, we find also a triangular structure in the quantum quasienergy band, which is enveloped by the mean-field triangle. The close relation between these two sets of quasienergies is further explored by a semiclassical method. With a Sommerfeld rule generalized to time-dependent systems, the quantum quasienergies are computed by quantizing semiclassically the mean-field model and they are found to agree very well with the results obtained directly with the second-quantized model. |
| 收录类别 | SCI |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/51788]  |
| 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 | Luo, XB,Xie, QT,Wu, BA. Quasienergies and Floquet states of two weakly coupled Bose-Einstein condensates under periodic driving[J]. PHYSICAL REVIEW A,2008,77(5). |
| APA | Luo, XB,Xie, QT,&Wu, BA.(2008).Quasienergies and Floquet states of two weakly coupled Bose-Einstein condensates under periodic driving.PHYSICAL REVIEW A,77(5). |
| MLA | Luo, XB,et al."Quasienergies and Floquet states of two weakly coupled Bose-Einstein condensates under periodic driving".PHYSICAL REVIEW A 77.5(2008). |
入库方式： OAI收割
来源：物理研究所
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