Superfluid Fermi Gas in Optical Lattices: Self-Trapping, Stable, Moving Solitons and Breathers

被引：61

作者：

Xue, Ju-Kui ^{[1
]}

Zhang, Ai-Xia ^{[1
]}

机构：

[1] NW Normal Univ, Phys & Elect Engn Coll, Lanzhou 730070, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 18期

基金：

中国国家自然科学基金;

关键词：

Solitons - Wave packets - Crystal lattices - Fermions - Optical lattices - Electron gas - Nonlinear equations - Statistical mechanics - Phase diagrams - Optical materials;

D O I：

10.1103/PhysRevLett.101.180401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We predict the existence of self-trapping, stable, moving solitons and breathers of Fermi wave packets along the Bose-Einstein condensation (BEC)-BCS crossover in one dimension (1D), 2D, and 3D optical lattices. The dynamical phase diagrams for self-trapping, solitons, and breathers of the Fermi matter waves along the BEC-BCS crossover are presented analytically and verified numerically by directly solving a discrete nonlinear Schrodinger equation. We find that the phase diagrams vary greatly along the BEC-BCS crossover; the dynamics of Fermi wave packet are different from that of Bose wave packet.

引用

页数：4

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