Fermi超流气体在unitarity区域和Bose-Einstein凝聚区域的自俘获现象研究米

王文元; 杨阳; 蒙红娟; 马莹; 祁鹏堂; 马云云; 段文山

物理学报

, , , , , ,

王文元, 杨阳, 蒙红娟, 马莹, 祁鹏堂, 马云云, 段文山. 2012: Fermi超流气体在unitarity区域和Bose-Einstein凝聚区域的自俘获现象研究米, 物理学报, 61(10): 15-21.

引用本文:

王文元, 杨阳, 蒙红娟, 马莹, 祁鹏堂, 马云云, 段文山. 2012: Fermi超流气体在unitarity区域和Bose-Einstein凝聚区域的自俘获现象研究米, 物理学报, 61(10): 15-21.

2012: The self-trapping of superfluid Fermi gases in the lose-Einstein condensation regime and in unitarity, Acta Physica Sinica, 61(10): 15-21.

Citation:

2012: The self-trapping of superfluid Fermi gases in the lose-Einstein condensation regime and in unitarity, Acta Physica Sinica, 61(10): 15-21.

Fermi超流气体在unitarity区域和Bose-Einstein凝聚区域的自俘获现象研究米

西北师范大学物理与电子工程学院,甘肃省原子分子物理与功能材料重点实验室,兰州730070

The self-trapping of superfluid Fermi gases in the lose-Einstein condensation regime and in unitarity

摘要: 在平均场理论和两模近似下，通过观察布居数差随时间的演化，以及布居数差的平均随非线性相互作用参数的变化，研究了对称双势阱以及势阱问高频调制时Fermi超流气体在unitarity区域和Bose-Einstein凝聚区域的自俘获现象．给出了出现自俘获现象的边界条件；发现高频调制在一定调制范围内使自俘获现象更容易实现．最后研究了初值对自俘获的影响，发现初值的绝对值︳s（O）︳的增加更有利于自俘获的实现．
- Bose-Einstein凝聚 /
- 俘获 /
- 气体 /
- 超流 /
- 平均场理论 /
- 相互作用参数 /
- 高频调制 /
- 布居数差
Abstract: In the mean-field theory and two-mode approximation, we study the self-trapping of superfluid Fermi gases in the BEC regime and in unitarity by observing the evolution of the population imbalance with time and the variation of the average of population imbalance with several non-linear interaction parameters. The high-frequency modulations of both the symmetric double-well potential and the potential well are studied. The boundary conditions of the self-trapping and non-self-trapping are given. We find that high-frequency modulation in a certain range of modulation can make the self-trapping phenomenon easier to achieve. Finally, we study the influence of the initial value on self-trapping, and find that the increase of the absolute of the initial value can make the self-trapping more conducive to the realization.

计量

文章访问数: 323
HTML全文浏览数: 95
PDF下载数: 0
施引文献: 0

Fermi超流气体在unitarity区域和Bose-Einstein凝聚区域的自俘获现象研究米

西北师范大学物理与电子工程学院,甘肃省原子分子物理与功能材料重点实验室,兰州730070

关键词:

摘要: 在平均场理论和两模近似下，通过观察布居数差随时间的演化，以及布居数差的平均随非线性相互作用参数的变化，研究了对称双势阱以及势阱问高频调制时Fermi超流气体在unitarity区域和Bose-Einstein凝聚区域的自俘获现象．给出了出现自俘获现象的边界条件；发现高频调制在一定调制范围内使自俘获现象更容易实现．最后研究了初值对自俘获的影响，发现初值的绝对值︳s（O）︳的增加更有利于自俘获的实现．

English Abstract

The self-trapping of superfluid Fermi gases in the lose-Einstein condensation regime and in unitarity

西北师范大学物理与电子工程学院,甘肃省原子分子物理与功能材料重点实验室,兰州730070

Keywords:

Abstract: In the mean-field theory and two-mode approximation, we study the self-trapping of superfluid Fermi gases in the BEC regime and in unitarity by observing the evolution of the population imbalance with time and the variation of the average of population imbalance with several non-linear interaction parameters. The high-frequency modulations of both the symmetric double-well potential and the potential well are studied. The boundary conditions of the self-trapping and non-self-trapping are given. We find that high-frequency modulation in a certain range of modulation can make the self-trapping phenomenon easier to achieve. Finally, we study the influence of the initial value on self-trapping, and find that the increase of the absolute of the initial value can make the self-trapping more conducive to the realization.

全文HTML

参考文献 (0)

下载: 全尺寸图片幻灯片

返回文章

用微信扫码二维码

分享至好友和朋友圈

Fermi超流气体在unitarity区域和Bose-Einstein凝聚区域的自俘获现象研究米

The self-trapping of superfluid Fermi gases in the lose-Einstein condensation regime and in unitarity

计量

出版历程

Fermi超流气体在unitarity区域和Bose-Einstein凝聚区域的自俘获现象研究米

English Abstract

The self-trapping of superfluid Fermi gases in the lose-Einstein condensation regime and in unitarity

全文HTML

目录