Motion of dark solitons in trapped Bose-Einstein condensates

被引：317

作者：

Busch, T ^{[1
]}

Anglin, JR ^{[1
]}

机构：

[1] Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.84.2298

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We use a multiple time scale boundary layer theory to derive the equation of motion for a dark (or grey) soliton propagating through an effectively one-dimensional cloud of Bose-Einstein condensate, assuming only that the background density and velocity vary slowly on the soliton scale. We show that solitons can exhibit viscous or radiative acceleration (antidamping), which we estimate as slow but observable on experimental time scales.

引用

页码：2298 / 2301

页数：4

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