Application of the Feshbach-resonance management to a tightly confined Bose-Einstein condensate

Details Application of the Feshbach-resonance management to a tightly confined Bose-Einstein condensate Application of the Feshbach-resonance management to a tightly confined Bose-Einstein condensate

2009-04-02

arxiv.org/abs/0904.0480v1

Physical Review A 79, 045602 (2009)

Physics

Condensed Matter

Quantum Gases

Physical Review A, in press

Scientific paper

We study suppression of the collapse and stabilization of matter-wave solitons by means of time-periodic modulation of the effective nonlinearity, using the nonpolynomial Schroedinger equation (NPSE) for BEC trapped in a tight cigar-shaped potential. By means of systematic simulations, a stability region is identified in the plane of the modulation amplitude and frequency. In the low-frequency regime, solitons feature chaotic evolution, although they remain robust objects.

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