2002/09/04 by Thorsten Koehler, Thorsten Köhler, Thomas Gasenzer +2 · 99 citations
Physics and Astronomy · #Ab initio #Atom (system on chip) #Atomic physics #Bose–Einstein condensate #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Molecule #Physics #Pulse (music) #Quantum mechanics #Quantum, superfluid, helium dynamics #Resonance (particle physics) #Strong Light-Matter Interactions #cond-mat
paper · pdf · doi:10.1103/physreva.67.013601
published in Physical Review A 67(1) (American Physical Society) · 18 pages, 20 figures
arxiv created 2002/09/04 · openalex publication_date 2003/01/07 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
In a recent experiment at JILA [E. A. Donley et al., Nature (London) 417, 529 (2002)] an initially pure condensate of 85Rb atoms was exposed to a specially designed time-dependent magnetic-field pulse in the vicinity of a Feshbach resonance. The production of additional components of the gas as well as their oscillatory behavior have been reported. We apply a microscopic theory of the gas to identify these components and determine their physical properties. Our time-dependent studies allow us to explain the observed dynamic evolution of all fractions, and to identify the physical relevance of the pulse shape. Based on ab initio predictions, our theory strongly supports the view that the experiments have produced a molecular condensate.