Nonlinear Josephson-type oscillations of a driven, two-component Bose-Einstein condensate
J. WilliamsJILA and Department of Physics, University of Colorado, Boulder, Colorado 80309-0440R. WalserJILA and Department of Physics, University of Colorado, Boulder, Colorado 80309-0440J. CooperJILA and Department of Physics, University of Colorado, Boulder, Colorado 80309-0440Eric CornellJILA and Department of Physics, University of Colorado, Boulder, Colorado 80309-0440Melanie HollandJILA and Department of Physics, University of Colorado, Boulder, Colorado 80309-0440
1999en
ABI
Аннотация
We propose an experiment that would demonstrate nonlinear Josephson-type oscillations in the relative population of a driven, two-component Bose-Einstein condensate. An initial state is prepared in which two condensates exist in a magnetic trap, each in a different hyperfine state, where the initial populations and relative phase between condensates can be controlled within experimental uncertainty. A weak driving field is then applied, which couples the two internal states of the atom and consequently transfers atoms back and forth between condensates. We present a model of this system and investigate the effect of the mean field on the dynamical evolution.
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