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Confinement-induced collapse of a dipolar Bose-Einstein condensate

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arxiv 1205.5176 v1 pith:K3JR4JZO submitted 2012-05-23 cond-mat.quant-gas

Confinement-induced collapse of a dipolar Bose-Einstein condensate

classification cond-mat.quant-gas
keywords latticecollapsedipolarbose-einsteincondensateconfinement-induceddbecdynamics
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We report on the observation of the confinement-induced collapse dynamics of a dipolar Bose-Einstein condensate (dBEC) in a one-dimensional optical lattice. We show that for a fixed interaction strength the collapse can be initiated in-trap by lowering the lattice depth below a critical value. Moreover, a stable dBEC in the lattice may become unstable during the time-of-flight dynamics upon release, due to the combined effect of the anisotropy of the dipolar interactions and inter-site coherence in the lattice.

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