Finite-temperature effects on the number fluctuation of ultracold atoms across the superfluid-to-Mott-insulator transition
文献类型：期刊论文
| 作者 | Yu, Yue ; Lu, Xiancong; Lu, XC , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China
|
| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2006 |
| 卷号 | 74期号:6页码:- |
| 关键词 | Bose-hubbard Model Optical Lattices Einstein Condensate Phase-transition Quantum Gases Bosons Thermodynamics Dynamics Systems Diagram |
| ISSN号 | 1050-2947 |
| 英文摘要 | We study the thermodynamics of ultracold Bose atoms in optical lattices by numerically diagonalizing the mean-field Hamiltonian of the Bose-Hubbard model. This method well describes the behavior of long-range correlations and therefore is valid deep in the superfluid phase. For the homogeneous Bose-Hubbard model, we draw the finite-temperature phase diagram and calculate the superfluid density at unity filling. We evaluate the finite-temperature effects in a recent experiment probing number fluctuation [Phys. Rev. Lett. 96 090401 (2006)], and find that our finite-temperature curves give a better fitting to the experimental data, implying non-negligible temperature effects in this experiment. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000243166700126 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5825]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Lu, XC , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Yue,Lu, Xiancong,Lu, XC , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China. Finite-temperature effects on the number fluctuation of ultracold atoms across the superfluid-to-Mott-insulator transition[J]. PHYSICAL REVIEW A,2006,74(6):-. |
| APA | Yu, Yue,Lu, Xiancong,&Lu, XC , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.(2006).Finite-temperature effects on the number fluctuation of ultracold atoms across the superfluid-to-Mott-insulator transition.PHYSICAL REVIEW A,74(6),-. |
| MLA | Yu, Yue,et al."Finite-temperature effects on the number fluctuation of ultracold atoms across the superfluid-to-Mott-insulator transition".PHYSICAL REVIEW A 74.6(2006):-. |
入库方式： OAI收割
来源：理论物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。