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Josephson Dynamics of a Bose-Einstein Condensate Trapped in a Double-Well Potential

Josephson Dynamics of a Bose-Einstein Condensate Trapped in a Double-Well Potential
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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 〉 4E3 is presented. 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 〉 4E3 is presented.
作者 杨宏伟 左维
出处 《Chinese Physics Letters》 SCIE CAS CSCD 2007年第3期620-623,共4页 中国物理快报(英文版)
基金 Supported by the National Natural Science Foundation of China under Grant Nos 10575119 and 10235030, the Knowledge hmovation Project of Chinese Academy of Sciences under Grant No KJCX-SYW-N2, and the National Basic Research Programme of China under Grant No 2002CAB00200.
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参考文献19

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