2017/11/01 by Mauro Nigro, Pablo Capuzzi, Horacio M. Cataldo +1 · 11 citations
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Dynamics (music) #Energy (signal processing) #Exact solutions in general relativity #Optical properties and cooling technologies in crystalline materials #Range (aeronautics) #Simple (philosophy) #Strong Light-Matter Interactions #Value (mathematics) #Work (physics) #cond-mat.quant-gas
paper · pdf · doi:10.1140/epjd/e2017-80382-4
published in The European Physical Journal D 71(11) (Springer Science+Business Media) · 7 pages, 5 figures
openalex publication_date 2017/11/01 · openalex created_date 2017/12/04 · arxiv created 2018/02/23 · arxiv updated 2018/02/27 · openalex updated_date 2026/08/05
We study the dynamics of three-dimensional Bose-Einstein condensates confined by double-well potentials using a two-mode model with an effective on-site interaction energy parameter. The effective on-site interaction energy parameter is evaluated for different numbers of particles ranging from a low experimental value to larger ones approaching the Thomas-Fermi limit, yielding important corrections to the dynamics. We analyze the time periods as functions of the initial imbalance and find a closed integral form that includes all interaction-driven parameters. A simple analytical formula for the self-trapping period is introduced and shown to accurately reproduce the exact values provided by the two-mode model. Systematic numerical simulations of the problem in 3D demonstrate the excellent agreement of the two-mode model for experimental parameters.