Quantum hydrodynamics and expansion of a strongly interacting Fermi gas

被引：7
|
作者：
Zhang, W. Y. [1 ]
Zhou, L.
Ma, Y. L.
机构：
[1] Fudan Univ, Surface Phys Lab, Shanghai 200433, Peoples R China
来源：
EPL | 2009年 / 88卷 / 04期
基金：
中国国家自然科学基金;
关键词：
BCS-BEC CROSSOVER; HARMONIC TRAP; GROUND-STATE; EXCITATIONS; CONDENSATE; ENERGY;
D O I：
10.1209/0295-5075/88/40001
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We generalize the quantum hydrodynamical equations and study the dynamics of a strongly interacting Fermi gas trapped in an anisotropic harmonic trap. By using this simple theory to simulate the expansion of the Fermi gas observed experimentally by O'Hara et al., Science, 298 ( 2002) 2179, we find that the density profiles of the system are well described by the Fetter-like form in the dynamical process in all spatial directions. We also discuss the anisotropic dependence on the expansion. Copyright (C) EPLA, 2009
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页数：6
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