Ground state of hard-core bosons in one-dimensional periodic potentials
文献类型：期刊论文
| 作者 | Lin, Y ; Wu, B |
| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2007 |
| 卷号 | 75期号:2 |
| 关键词 | TONKS-GIRARDEAU GAS INTERACTING BOSE-GAS IMPENETRABLE BOSONS OPTICAL LATTICES CONDENSATE DYNAMICS HELIUM PHASES |
| ISSN号 | 1050-2947 |
| 通讯作者 | Lin, Y: Chinese Acad Sci, Inst Phys, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | With Girardeau's Fermi-Bose mapping, we find the exact ground states of hard-core bosons residing in a one-dimensional periodic potential. The analysis of these ground states shows that when the number of bosons N is commensurate with the number of wells M in the periodic potential, the boson system is a Mott insulator whose energy gap, however, is given by the single-particle band gap of the periodic potential; when N is not commensurate with M, the system is a metal (not a superfluid). In fact, we argue that there may be no superfluid phase for any one-dimensional boson system in terms of Landau's criterion of superfluidity. The Kronig-Penney potential is used to illustrate our results. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/38849]  |
| 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 | Lin, Y,Wu, B. Ground state of hard-core bosons in one-dimensional periodic potentials[J]. PHYSICAL REVIEW A,2007,75(2). |
| APA | Lin, Y,&Wu, B.(2007).Ground state of hard-core bosons in one-dimensional periodic potentials.PHYSICAL REVIEW A,75(2). |
| MLA | Lin, Y,et al."Ground state of hard-core bosons in one-dimensional periodic potentials".PHYSICAL REVIEW A 75.2(2007). |
入库方式： OAI收割
来源：物理研究所
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