2003/12/01 by Andrey R. Kolovsky · 3 citations
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Quantum optics and atomic interactions #Quantum, superfluid, helium dynamics #cond-mat.soft
paper · pdf · doi:10.1103/physreva.70.015604
published as Phys. Rev. A 70 (2004), 015604 · 4 pages, 5 figures
arxiv created 2003/12/01 · openalex publication_date 2004/07/29 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
We study the dynamical response of cold interacting atoms in the Mott insulator phase to a static force. As shown in the experiment by [M. Greiner et al., Nature 415, 39 (2002)], this response has resonant character, with the main resonance defined by coincidence of Stark energy and on-site interaction energy. We analyze the dynamics of the atomic momentum distribution, which is the quantity measured in the experiment, for near resonant forcing. The momentum distribution is shown to develop a recurring interference pattern, with a recurrence time which we define in the paper.