2002/04/24 by R. A. Duine, Duine, R. A., H. T. C. Stoof +1
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Condensed Matter (cond-mat) #FOS: Physical sciences #Quantum Electrodynamics and Casimir Effect #Quantum Mechanics and Applications #cond-mat
paper · pdf · doi:10.48550/arxiv.cond-mat/0204529
4 pages, 3 figures, revtex
arxiv created 2002/04/24 · openalex publication_date 2002/04/24 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We show that a Bose-Einstein condensate emits atoms, if either the condensate wave function, or the scattering length of the atoms depends strongly on time. Moreover, the emission process is coherent and atoms can oscillate back and forth between the condensate and the excited states. Inspired by recent experimental results, we present results of simulations of the response of a Bose-Einstein condensate to a very rapid change in the scattering length. The possibility of molecule formation is also discussed.