Bifurcation of vortex density current in trapped Bose condensates

被引：0

作者：

Xu, T ^{[1
]}

Zhang, SL ^{[1
]}

机构：

[1] Xian Jiaotong Univ, Dept Appl Phys, Xian 710049, Peoples R China

来源：

COMMUNICATIONS IN THEORETICAL PHYSICS | 2002年 / 37卷 / 06期

关键词：

vortex current; bifurcation;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Vortex density current in the Gross-Pitaevskii theory is studied. It is shown that the inner structure of the topological vertices can be classified by Brouwer degrees and Hopf indices of Phi-mapping. The dynamical equations of vertex density current have been given. The bifurcation behavior at the critical points of the current is discussed in detail.

引用

页码：682 / 684

页数：3

共 15 条

[1] OBSERVATION OF BOSE-EINSTEIN CONDENSATION IN A DILUTE ATOMIC VAPOR [J].

ANDERSON, MH ;

ENSHER, JR ;

MATTHEWS, MR ;

WIEMAN, CE ;

CORNELL, EA .

SCIENCE, 1995, 269 (5221) :198-201

[2]

[Anonymous], 1958, Zh. Ekzp. Teor. Fiz

[3] BOSE-EINSTEIN CONDENSATION IN LOW-DIMENSIONAL TRAPS [J].

BAGNATO, V ;

KLEPPNER, D .

PHYSICAL REVIEW A, 1991, 44 (11) :7439-7441

[4] Bose-Einstein condensation in a two-dimensional, trapped, interacting gas [J].

Bayindir, M ;

Tanatar, B .

PHYSICAL REVIEW A, 1998, 58 (04) :3134-3137

[5] Double-quantum vortex in superfluid 3He-A [J].

Blaauwgeers, R ;

Eltsov, VB ;

Krusius, M ;

Ruohio, JJ ;

Schanen, R ;

Volovik, GE .

NATURE, 2000, 404 (6777) :471-473

[6]

BRADLEY C, 1995, PHYS REV LETT, V75, P9

[7] Theory of Bose-Einstein condensation in trapped gases [J].

Dalfovo, F ;

Giorgini, S ;

Pitaevskii, LP ;

Stringari, S .

REVIEWS OF MODERN PHYSICS, 1999, 71 (03) :463-512

[8] BOSE-EINSTEIN CONDENSATION IN A GAS OF SODIUM ATOMS [J].

DAVIS, KB ;

MEWES, MO ;

ANDREWS, MR ;

VANDRUTEN, NJ ;

DURFEE, DS ;

KURN, DM ;

KETTERLE, W .

PHYSICAL REVIEW LETTERS, 1995, 75 (22) :3969-3973

[9] A new topological aspect in the O(n) symmetric time-dependent Ginzburg-Landau model [J].

Duan, YS ;

Jiang, Y ;

Xu, T .

PHYSICS LETTERS A, 1999, 252 (06) :307-315

[10]

Dubrovin BA., 1984, MODERN GEOMETRY METH, DOI DOI 10.1007/978-1-4684-9946-9

← 1 2 →