2006/03/03 by N. G. Parker, Parker, N. G., A. Martin +7
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Other Condensed Matter (cond-mat.other) #Semiconductor Quantum Structures and Devices #Strong Light-Matter Interactions #cond-mat.other
paper · pdf · doi:10.48550/arxiv.cond-mat/0603059
5 pages, 4 figures
arxiv created 2006/03/03 · openalex publication_date 2006/03/03 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study bright solitary waves of three dimensional trapped Bose-Einstein condensates and their collisions. For a single solitary wave, in addition to an upper critical number, we also find a \em lower cut-off, below which no stable state can be found. Collisions between solitary waves can be elastic, inelastic with either reduced or increased outgoing speed, or completely unstable due to a collapse instability. A π-phase difference between the waves promotes elastic collisions, and gives excellent agreement with recent experimental results over long timescales.