摘要The Josephson equations for a Bose--Einstein Condensate gas trapped in a double-well potential are derived with the two-mode approximation by the Gross--Pitaevskii equation. The dynamical characteristics of the equations are obtained by the numerical phase diagrams. The nonlinear self-trapping effect appeared in the phase diagrams are emphatically discussed, and the condition EcN>4EJ is presented.
Abstract：The Josephson equations for a Bose--Einstein Condensate gas trapped in a double-well potential are derived with the two-mode approximation by the Gross--Pitaevskii equation. The dynamical characteristics of the equations are obtained by the numerical phase diagrams. The nonlinear self-trapping effect appeared in the phase diagrams are emphatically discussed, and the condition EcN>4EJ is presented.
YANG Hong-Wei;ZUO Wei;. Josephson Dynamics of a Bose--Einstein Condensate Trapped in a Double-Well Potential[J]. 中国物理快报, 2007, 24(3): 620-623.
YANG Hong-Wei, ZUO Wei,. Josephson Dynamics of a Bose--Einstein Condensate Trapped in a Double-Well Potential. Chin. Phys. Lett., 2007, 24(3): 620-623.
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