Watching dark solitons decay into vortex rings in a Bose-Einstein condensate

被引:642
作者
Anderson, BP [1 ]
Haljan, PC
Regal, CA
Feder, DL
Collins, LA
Clark, CW
Cornell, EA
机构
[1] Univ Colorado, JILA, Natl Inst Stand & Technol, Boulder, CO 80309 USA
[2] Univ Colorado, Dept Phys, Boulder, CO 80309 USA
[3] Natl Inst Stand & Technol, Quantum Phys Div, Boulder, CO 80305 USA
[4] Lawrence Univ, Dept Phys, Appleton, WI 54912 USA
[5] Natl Inst Stand & Technol, Electron & Opt Phys Div, Gaithersburg, MD 20899 USA
[6] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA
关键词
D O I
10.1103/PhysRevLett.86.2926
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We have created spatial dark solitons in two-component Bose-Einstein condensates in which the soli ton exists in one of the condensate components and the soliton nodal plane is filled with the second component. The filled solitons are stable for hundreds of milliseconds. The filling can be selectively removed, making the soliton more susceptible to dynamical instabilities. For a condensate in a spherically symmetric potential, these instabilities cause the dark soliton to decay into stable vortex rings. We have imaged the resulting vortex rings.
引用
收藏
页码:2926 / 2929
页数:4
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