Collapsing Bose-Einstein condensates beyond the Gross-Pitaevskii approximation

S. Wüster*, J. J. Hope, C. M. Savage

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    28 Citations (Scopus)

    Abstract

    We analyze quantum field models of the bosenova experiment, in which 85Rb Bose-Einstein condensates were made to collapse by switching their atomic interactions from repulsive to attractive. Specifically, we couple the lowest order quantum field correlation functions to the Gross-Pitaevskii function, and solve the resulting dynamical system numerically. Comparing the computed collapse times with the experimental measurements, we find that the calculated times are much larger than the measured values. The addition of quantum field corrections does not noticeably improve the agreement compared to a pure Gross-Pitaevskii theory.

    Original languageEnglish
    Article number033604
    JournalPhysical Review A - Atomic, Molecular, and Optical Physics
    Volume71
    Issue number3
    DOIs
    Publication statusPublished - 1 Mar 2005

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