Physics – Condensed Matter
Scientific paper
2000-10-27
Phys. Rev. A 65, 043609 (2002)
Physics
Condensed Matter
6 pages, 5 eps figures, RevTeX
Scientific paper
10.1103/PhysRevA.65.043609
We show the existence of stationary solutions of a 1-D Gross-Pitaevskii equation in presence of a multi-well external potential that do not reduce to any of the eigenfunctions of the associated Schroedinger problem. These solutions, which in the limit of strong nonlinearity have the form of chains of dark or bright solitons located near the extrema of the potential, represent macroscopically excited states of a Bose-Einstein condensate and are in principle experimentally observable.
D'Agosta Roberto
Presilla Carlo
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