2003/06/09 by Victo S. Filho, Filho, Victo S., L. Tomio +6
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Quantum, superfluid, helium dynamics #Soft Condensed Matter (cond-mat.soft) #Strong Light-Matter Interactions #cond-mat.soft
paper · pdf · doi:10.48550/arxiv.cond-mat/0306218
Total of 4 pages, 5 figures and 1 table. Submitted to Phys. Rev
openalex publication_date 2003/06/09 · arxiv created 2003/06/23 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The results of a recent experiment with 85Rb Bose-Einstein condensates are analyzed within the mean-field approximation including dissipation due to three-body recombination. The intensity of the dissipative term is chosen from the three-body theory for large positive scattering lengths. The remaining number of condensed atoms in the experiment, obtained with applied magnetic field pulses, were used to adjust the intensity of the dissipative term. We found that the three-body recombination parameter depends on the pulse rise time; i.e., for longer rise times the values found become consistent with the three-body theory, while for shorter pulses this coefficient is found to be much larger. We interpret this finding as an indication of a coherent formation of dimers.