Superposition solitons in two-component Bose-Einstein condensates |
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| Authors: | Wang Xiao-Min Li Qiu-Yan and Li Zai-Dong |
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| Institution: | Department of Applied Physics, Hebei University of Technology, Tianjin 300401, China |
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| Abstract: | We develop the Hirota bilinear method and obtain the exact one and two superposition soliton solutions for two-component Bose-Einstein condensates. The conversion of three kinds of solitons including the superposition solitons, bright-bright solitons, and dark-bright solitons is discussed. With the energy analysis, we find that the superposition soliton state is an excitation state for this system. Moreover, the collision of two superposition solitons is found to be elastic. |
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| Keywords: | superposition solitons excitation states Hirota bilinear method |
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