2001/06/05 by M. Modugno, C. Fort, P. Maddaloni +2 · 1 citation
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Pulsars and Gravitational Waves Research #Quantum chaos and dynamical systems #cond-mat
paper · pdf · doi:10.1007/s100530170009
published as Eur. Phys. J. D 17, 345 (2001) · 5 RevTex pages, 7 eps figures
arxiv created 2001/06/05 · openalex publication_date 2001/12/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We have investigated the center-of-mass oscillations of a Rb87 Bose-Einstein condensate in an elongated magneto-static trap. We start from a trapped condensate and we transfer part of the atoms to another trapped level, by applying a radio-frequency pulse. The new condensate is produced far from its equilibrium position in the magnetic potential, and periodically collides with the parent condensate. We discuss how both the damping and the frequency shift of the oscillations are affected by the mutual interaction between the two condensates, in a wide range of trapping frequencies. The experimental data are compared with the prediction of a mean-field model.