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

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.

preprint2009arXivOpen access
Giovanni FilatrellaBoris A. MalomedLuca Salasnich
cond-mat.othercond-mat.quant-gas
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Giovanni FilatrellaBoris A. MalomedLuca Salasnich

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