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Parametric resonance of capillary waves at the interface between two immiscible Bose-Einstein condensates | D. Kobyakov
; V. Bychkov
; E. Lundh
; A. Bezett
; M. Marklund
; | Date: |
21 Jun 2012 | Abstract: | We study parametric resonance of capillary waves on the interface between two
immiscible Bose-Einstein condensates pushed towards each other by an
oscillating force. Guided by analytical models, we solve numerically the
coupled Gross-Pitaevskii equations for two-component Bose-Einstein condensate
at zero temperature. We show that, at moderate amplitudes of the driving force,
the instability is stabilized due to non-linear modifications of the
oscillation frequency. When the amplitude of the driving force is large enough,
we observe detachment of droplets from the Bose-Einstein condensates, resulting
in generation of quantum vortices (skyrmions). We analytically investigate the
vortex dynamics, and conditions of quantized vortex generation. | Source: | arXiv, 1206.4834 | Services: | Forum | Review | PDF | Favorites |
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