Stabilization of matter wave solitons in weakly coupled atomic condensates

Stabilization of matter wave solitons in weakly coupled atomic condensates

We investigate the dynamics of a weakly coupled two component Bose–Einstein condensate and generate bright soliton solutions. We observe that when the bright solitons evolve in time, the density of the condensates shoots up suddenly by virtue of weak coupling indicating the onset of instability in t...

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Veröffentlicht in:Physics letters. A 2012-02, Vol.376 (8-9), p.944-949
Hauptverfasser: Radha, R., Vinayagam, P.S.
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Sprache:eng
Schlagworte:
Bose–Einstein condensate
Bright soliton
Condensates
Density
Gauge transformation
GP equation
Instability
Matter waves
Solid state physics
Solitons
Stability
Tuning
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Vinayagam, P.S.
description We investigate the dynamics of a weakly coupled two component Bose–Einstein condensate and generate bright soliton solutions. We observe that when the bright solitons evolve in time, the density of the condensates shoots up suddenly by virtue of weak coupling indicating the onset of instability in the dynamical system. However, this instability can be overcome either through Feshbach resonance by tuning the temporal scattering length or by suitably changing the time dependent coupling coefficient, thereby extending the lifetime of the condensates.
doi_str_mv 10.1016/j.physleta.2012.01.029
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subjects Bose–Einstein condensate
Bright soliton
Condensates
Density
Gauge transformation
GP equation
Instability
Matter waves
Solid state physics
Solitons
Stability
Tuning
title Stabilization of matter wave solitons in weakly coupled atomic condensates
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