Crossover from 2D to 3D in a Weakly Interacting Fermi Gas

被引：122

作者：

Dyke, P. ^{[1
]}

Kuhnle, E. D. ^{[1
]}

Whitlock, S. ^{[1
,2
]}

Hu, H. ^{[1
]}

Mark, M. ^{[1
]}

Hoinka, S. ^{[1
]}

Lingham, M. ^{[1
]}

Hannaford, P. ^{[1
]}

Vale, C. J. ^{[1
]}

机构：

[1] Swinburne Univ Technol, ARC Ctr Excellence Quantum Atom Opt, Ctr Atom Opt & Ultrafast Spect, Hawthorn, Vic 3122, Australia

[2] Heidelberg Univ, Inst Phys, D-69120 Heidelberg, Germany

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 106卷 / 10期

基金：

澳大利亚研究理事会;

关键词：

BOSE-EINSTEIN CONDENSATION; 2-DIMENSIONAL SYSTEMS; SUPERCONDUCTIVITY; TRAP;

D O I：

10.1103/PhysRevLett.106.105304

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied the transition from two to three dimensions in a low temperature weakly interacting Li-6 Fermi gas. Below a critical atom number N-2D only the lowest transverse vibrational state of a highly anisotropic oblate trapping potential is occupied and the gas is two dimensional. Above N-2D the Fermi gas enters the quasi-2D regime where shell structure associated with the filling of individual transverse oscillator states is apparent. This dimensional crossover is demonstrated through measurements of the cloud size and aspect ratio versus atom number.

引用

页数：4

共 40 条

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