Document Type

Article

Publication Date

Spring 4-2-2001

Publication Title

Physical Review Letters

ISSN

0031-9007

Volume

86

Issue

14

First Page

2926

Last Page

2929

DOI

10.1103/PhysRevLett.86.2926

Abstract

We have created spatial dark solitons in two-component Bose-Einstein condensates in which the soliton 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.

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