Incoherent matter-wave solitons: Mutual self-trapping of a Bose-Einstein condensate and its surrounding thermal cloud

摘要

We show that a Bose-Einstein condensate and a portion of its surroundingthermal cloud can exhibit mutual self-trapping, supported by the attractiveparticle interactions, and not by the external confinement. This type ofdynamics is characteristic of composite random-phase solitons.