Phase Kink Dynamics in fluctuating Bose condensates

ORAL

Abstract

We study the dynamics of Bose gases following a phase imprint. Numerical results within truncated Wigner approximation, which includes both quantum and thermal fluctuations, are compared with analytical predictions. In order to emphasize the effects of fluctuations in these approximations, we also compare our results with dynamics governed by the Gross Pitaevskii equation. We study the dynamics of several observables, including the density and single-particle and density-density correlation functions, with particular focus on experimentally relevant quantities.

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Authors

  • Amy Cassidy

    • Joint Quantum Institute, NIST and University of Maryland

  • Ludwig Mathey

    • Joint Quantum Institute, University of Maryland and National Institute of Standard and Technology, Gaithersburg, MD 20899
    • Joint Quantum Institute, NIST and University of Maryland

  • Charles Clark

    • Joint Quantum Institute
    • NIST
    • Joint Quantum Insititue, National Insitute of Standard and Technology
    • Joint Quantum Institute, National Institute of Standards and Technology and University of Maryland
    • JQI, NIST and the University of Maryland
    • National Institute of Standards and Technology
    • Joint Quantum Institute, NIST and the University of Maryland
    • Joint Quantum Institute, NIST and University of Maryland