| year | 2007 |
| author(s) | G. Theocharis, P.G. Kevrekidis, M.K. Oberthaler and D.J. Frantzeskakis |
| title | Dark matter-wave solitons in the dimensionality crossover |
| KIP-Nummer | HD-KIP 07-73 |
| KIP-Gruppe(n) | F17 |
| document type | Paper |
| Keywords (shown) | Dark matter-wave solitons dimensionality crossover |
| source | Physical Review A 76 (2007) 045601, arXiv:0710.1179 |
| doi | 10.1103/PhysRevA.76.045601 |
| Abstract (en) | We consider the statics and dynamics of dark matter-wave solitons in the dimensionality crossover regime from 3D to 1D. There, using the nonpolynomial Schrödinger mean-field model, we find that the anomalous mode of the Bogoliubov spectrum has an eigenfrequency which coincides with the soliton oscillation frequency obtained by the 3D Gross-Pitaevskii model. We show that substantial deviations (of order of 10% or more) from the characteristic frequency ωz/√2 (ωz being the longitudinal trap frequency) are possible even in the purely 1D regime. |
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