Manipulation of vortices by localized impurities in Bose-Einstein condensates

被引：26

作者：

Davis, M. C. ^{[1
,2
]}

Carretero-Gonzalez, R. ^{[1
,2
]}

Shi, Z. ^{[3
]}

Law, K. J. H. ^{[3
]}

Kevrekidis, P. G. ^{[3
]}

Anderson, B. P. ^{[4
,5
]}

机构：

[1] San Diego State Univ, Dept Math & Stat, San Diego, CA 92182 USA

[2] San Diego State Univ, Computat Sci Res Ctr, Dynam Syst Grp, San Diego, CA 92182 USA

[3] Univ Massachusetts, Dept Math & Stat, Amherst, MA 01003 USA

[4] Univ Arizona, Coll Opt Sci, Tucson, AZ 85721 USA

[5] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA

来源：

PHYSICAL REVIEW A | 2009年 / 80卷 / 02期

关键词：

MATTER-WAVE SOLITONS; VORTEX STABILITY; DARK SOLITON; DYNAMICS; CURRENTS;

D O I：

10.1103/PhysRevA.80.023604

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We consider the manipulation of Bose-Einstein condensate vortices by optical potentials generated by focused laser beams. It is shown that for appropriate choices of the laser strength and width it is possible to successfully transport vortices to various positions inside the trap confining the condensate atoms. Furthermore, the full bifurcation structure of possible stationary single-charge vortex solutions in a harmonic potential with this type of impurity is elucidated. The case when a moving vortex is captured by a stationary laser beam is also studied, as well as the possibility of dragging the vortex by means of periodic optical lattices.

引用

页数：9

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