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cond-mat.soft2000★ 177 cited
Dark solitons in a two-component Bose-Einstein condensate
P. Ohberg, L. Santos
The creation and interaction of dark solitons in a two-component Bose-Einstein condensate is investigated. For a miscible case, the interaction of dark solitons in different compon…
cond-mat.soft2000★ 6 cited
Quasi-periodic vs. irreversible dynamics of an optically confined Bose-Einstein condensate
Pierre Villain, Patrik Ohberg, Maciej Lewenstein
We consider the evolution of a dilute Bose-Einstein condensate in an optical trap formed by a doughnut laser mode. By solving a one dimensional Gross-Pitaevskii equation and lookin…
cond-mat.soft2000★ 22 cited
Four-wave mixing in degenerate atomic gases
P. Villain, P. Ohberg, L. Santos +2
We study the process of four-wave mixing (4WM) in ultracold degenerate atomic gases. In particular we address the problem of 4WM in boson-fermion mixtures. We develop an approximat…