Dark solitons in a two-component Bose-Einstein condensate

Abstract

The creation and interaction of dark solitons in a two-component Bose-Einstein condensate is investigated. For a miscible case, the interaction of dark solitons in different components is studied. Various possible scenarios are presented, including the formation of a soliton-soliton bound pair. We also analyze the soliton propagation in the presence of domains, and show that a dark soliton can be transferred from one component to the other at the domain wall when it exceeds a critical velocity. For lower velocities multiple reflections within the domain are observed, where the soliton is evaporated and accelerated after each reflection until it finally escapes from the domain.

4 pages, 4 eps figures (due to their large size it could take a while to print them)

References in corpus (2)

• Dark soliton states of Bose-Einstein condensates in anisotropic traps
• Vortex precession in Bose-Einstein condensates: observations with filled and empty cores

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