Phase transition to Bose-Einstein condensation for a bosonic gas confined in a combined trap
文献类型：期刊论文
| 作者 | Lue, Baolong1; Tan, Xinzhou1,2; Wang, Bing1,2; Cao, Lijuan1,2; Xiong, Hongwei1 |
| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2010-11-24 |
| 卷号 | 82期号:5页码:053629-53629 |
| 产权排序 | 第一 |
| 英文摘要 | We present a study of phase transition to macroscopic superfluidity for an ultracold bosonic gas confined in a combined trap formed by a one-dimensional optical lattice and a harmonic potential, focusing on the critical temperature of this system and the interference patterns of the Bose gas released from the combined trap. Based on a semiclassical energy spectrum, we develop an analytic approximation for the critical temperature T(c), and compare the analytic results with that obtained by numerical computations. For finite temperatures below T(c), we calculate the interference patterns for both the normal gas and the superfluid gas. The total interference pattern shows a feature of "peak on a peak." As a comparison, we also present the experimentally observed interference patterns of (87)Rb atoms released from a one-dimensional optical lattice system in accord with our theoretical model. Our observations are consistent with the theoretical results. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | 原子分子物理学 |
| 类目[WOS] | Optics ; Physics, Atomic, Molecular & Chemical |
| 研究领域[WOS] | Optics ; Physics |
| 关键词[WOS] | OPTICAL LATTICES ; ATOMS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000286730600012 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/2093]  |
| 专题 | 武汉物理与数学研究所_2011年以前论文发表（包括2011年） |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lue, Baolong,Tan, Xinzhou,Wang, Bing,et al. Phase transition to Bose-Einstein condensation for a bosonic gas confined in a combined trap[J]. PHYSICAL REVIEW A,2010,82(5):053629-53629. |
| APA | Lue, Baolong,Tan, Xinzhou,Wang, Bing,Cao, Lijuan,&Xiong, Hongwei.(2010).Phase transition to Bose-Einstein condensation for a bosonic gas confined in a combined trap.PHYSICAL REVIEW A,82(5),053629-53629. |
| MLA | Lue, Baolong,et al."Phase transition to Bose-Einstein condensation for a bosonic gas confined in a combined trap".PHYSICAL REVIEW A 82.5(2010):053629-53629. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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