Ground-state properties of interacting two-component Bose gases in a hard-wall trap
文献类型：期刊论文
| 作者 | Hao, YJ ; Zhang, YB ; Guan, XW ; Chen, S |
| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2009 |
| 卷号 | 79期号:3 |
| 关键词 | TONKS-GIRARDEAU GAS SPATIAL SYMMETRY-BREAKING ONE-DIMENSION EINSTEIN CONDENSATE IMPENETRABLE BOSONS BINARY-MIXTURES SYSTEMS ATOMS |
| ISSN号 | 1050-2947 |
| 通讯作者 | Hao, YJ: Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | We investigate ground-state properties of interacting two-component Bose gases in a hard-wall trap using both the Bethe ansatz and exact numerical diagonalization method. For equal intra-atomic and interatomic interaction, the system is exactly solvable. Thus the exact ground-state wave-function and density distributions for the whole interacting regime can be obtained from the Bethe ansatz solutions. Since the ground state is a degenerate state with total spin S=N/2, the total density distributions are the same for each degenerate state. The total density distribution evolves from a Gauss-like Bose distribution to a Fermi-like one as the repulsive interaction increases. The distribution of each component is N(alpha)/N of the total density distribution. This is approximately true even in the experimental situation. In addition the numerical results show that with the increase in interspecies interaction the distributions of two Tonks-Girardeau gases exhibit composite-fermionization crossover with each component developing N peaks in the strongly interacting regime. |
| 收录类别 | SCI |
| 资助信息 | NSF of China [10574150, 10774095]; 973 Program [2006CB921102, 2006CB921300]; National Program for Basic Research of MOST, China; Chinese Academy of Sciences |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/38858]  |
| 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 | Hao, YJ,Zhang, YB,Guan, XW,et al. Ground-state properties of interacting two-component Bose gases in a hard-wall trap[J]. PHYSICAL REVIEW A,2009,79(3). |
| APA | Hao, YJ,Zhang, YB,Guan, XW,&Chen, S.(2009).Ground-state properties of interacting two-component Bose gases in a hard-wall trap.PHYSICAL REVIEW A,79(3). |
| MLA | Hao, YJ,et al."Ground-state properties of interacting two-component Bose gases in a hard-wall trap".PHYSICAL REVIEW A 79.3(2009). |
入库方式： OAI收割
来源：物理研究所
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