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Physical Review Letters

Dynamics of Narrow Bright Solitons in an Array of Attractive Atoms in a Bose-Einstein Condensate

A. Montina, F. T. Arecchi

Published Jun 16, 2005• 4 citations
Publisher

Abstract

We study the dynamics of a narrow bright soliton in a one-dimensional lattice of condensed attractive atoms when the soliton width is comparable to the lattice spacing. If a momentum is imprinted to a stationary state, the soliton can have oscillations around a site or it can undergo a random motion along the array. The motion is very sensitive to the atomic background distribution, and a thermal cloud or quantum field fluctuations can induce a random motion of the soliton.

DOI
10.1103/physrevlett.94.230402

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