Nonlinear Landau-Zener Tunnelling with Two and Three-Body Interactions

WEI Xiu-Fang; TANG Rong-An; YONG Wen-Mei; XUE Ju-Kui

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Nonlinear Landau-Zener Tunnelling with Two and Three-Body Interactions

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We investigate the nonlinear Landau-Zener tunnelling of Bose-Einstein condensate (BEC) in an accelerating optical lattice with two- and three-body interactions between the particles. The influence of the three-body interaction on the eigenstates and the transition probability are discussed both analytically and numerically.The analytical eigenstates and the tunnelling probability are obtained,which are verified by numerical methods.It is shown that the eigenstates and the tunnelling probability are modified dramatically by three-body interaction.

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《中国物理快报：英文版》 |2008年第5期|1564-1567|共4页
作者
WEI Xiu-Fang; TANG Rong-An; YONG Wen-Mei; XUE Ju-Kui;
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作者单位

College of Physics and Electronics Engineering,Northwest Normal University,Lanzhou 730070;

Department of Physics,Lanzhou City University,Lanzhou 730070;

College of Physics and Electronics Engineering,Northwest Normal University,Lanzhou 730070;

College of Physics and Electronics Engineering,Northwest Normal University,Lanzhou 730070;

College of Physics and Electronics Engineering,Northwest Normal University,Lanzhou 730070;

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中图分类物理学;
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Nonlinear Landau-Zener Tunnelling with Two and Three-Body Interactions

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