Speaker
Dr
Alexandru Nicolin
(Horia Hulubei National Institute for Physics and Nuclear Engineering)
Description
Motivated by the continuous interest shown to the nonlinear dynamics of quantum gases we present in this talk the emergence of resonant waves in cigar-shaped Bose-Einstein condensates using which has been reported in Ref. [1].
We introduce the analytic treatment of the dynamics of a trapped, quasi-one-dimensional Bose-Einstein condensate subject to resonant and nonresonant periodic modulation of the transverse confinement. The dynamics of the condensate is described variationally through a set of coupled ordinary differential equations, and the period of the excited waves is determined analytically using a Mathieu-type analysis. For a modulation frequency equal to that of the radial confinement we show that the predicted period of the resonant wave is in agreement with the existing experimental results. Finally, we present a detailed comparison between the resonant waves and the Faraday waves that emerge outside of resonance.
[1] A.I. Nicolin, Phys. Rev. E 84, 056202 (2011).
Primary author
Dr
Alexandru Nicolin
(Horia Hulubei National Institute for Physics and Nuclear Engineering)
