Watching dark solitons decay into vortex rings in a Bose-Einstein condensate
Physical Review Letters, 2001•APS
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.
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.
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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