Nonlinear Bose-Einstein-condensate dynamics induced by a harmonic modulation of the s-wave scattering length

@article{Vidanovic2011NonlinearBD,
  title={Nonlinear Bose-Einstein-condensate dynamics induced by a harmonic modulation of the s-wave scattering length},
  author={Ivana Vidanovic and Antun Balaz and Hamid Al-Jibbouri and Axel Pelster},
  journal={Physical Review A},
  year={2011},
  volume={84},
  pages={013618}
}
In a recent experiment, a Bose-Einstein condensate of {sup 7}Li has been excited by a harmonic modulation of the atomic s-wave scattering length via Feshbach resonance. By combining an analytical perturbative approach with extensive numerical simulations, we analyze the emerging nonlinear dynamics of the system on the mean-field Gross-Pitaevskii level at zero temperature. Resulting excitation spectra are presented and prominent nonlinear features are found: mode coupling, higher harmonics… Expand
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