Characterisation of the dynamical quantum state of a zero temperature Bose–Einstein condensate

J. Rogel-Salazar, S. Choi, G. H. C. New, K. Burnett

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    Abstract

    We describe the quantum state of a Bose–Einstein condensate at zero temperature. By evaluating theQ-function we show that the ground state of Bose–Einstein condensate under the Hartree approximation is squeezed.We find that multimode Schrödinger cat states are generated as the condensate evolves in a ballistic expansion.
    Original languageEnglish
    Pages (from-to)476-482
    Number of pages7
    JournalPhysics Letters A
    Volume299
    Issue number5-6
    DOIs
    Publication statusPublished - 1 Jul 2002

    Keywords

    • bose,einstein condensation,quantum state,schrödinger cat states,squeezing

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