Competition Among Three Coupled Bose-Einstein Condensates due to Potential Deviation |
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| Authors: | Hong Li D N Wang Yongshan Cheng |
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| Institution: | (1) Department of Physics, Hubei Normal University, Huang shi, 435002, P. R. China;(2) Department of Electrical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. China |
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| Abstract: | Three coupled Bose-Einstein condensates are investigated by the variational approach in finite potentials with potential deviation, and the effects of the potential deviation on dynamics of the three Bose-Einstein condensates are studied. The potential deviation leads to the shift of the stationary state, resets the stability condition, causes the population imbalance competition, and changes the switching and self-trapping effects on the Bose-Einstein condensates. The effect mechanism is demonstrated by performing a coordinate of classical particles moving in an effective potential field. The critical behaviors are analyzed, and are confirmed by evolution of the atom population imbalance ratio.
PACS: 03.75.Fi, 32.80.Pj |
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| Keywords: | Coupled Bose-Einstein condensate potential deviation imbalance competition stationary state |
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