Application of the Feshbach-resonance management to a tightly confined Bose-Einstein condensate
Abstract
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 Schrödinger equation for Bose-Einstein condensate 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.
- Publication:
-
Physical Review A
- Pub Date:
- April 2009
- DOI:
- 10.1103/PhysRevA.79.045602
- arXiv:
- arXiv:0904.0480
- Bibcode:
- 2009PhRvA..79d5602F
- Keywords:
-
- 03.75.Kk;
- 03.75.Lm;
- Dynamic properties of condensates;
- collective and hydrodynamic excitations superfluid flow;
- Tunneling Josephson effect Bose-Einstein condensates in periodic potentials solitons vortices and topological excitations;
- Condensed Matter - Quantum Gases;
- Condensed Matter - Other Condensed Matter
- E-Print:
- Physical Review A, in press