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Dynamics of narrow bright solitons in an array of attractive atoms in a Bose-Einstein condensate.

Authors
  • Montina, A
  • Arecchi, F T
Type
Published Article
Journal
Physical review letters
Publication Date
Jun 17, 2005
Volume
94
Issue
23
Pages
230402–230402
Identifiers
PMID: 16090446
Source
Medline
License
Unknown

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.

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