| Skyrmion crystals in pseudo-spin-1/2 Bose–Einstein condensates |
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| 引用本文： | 张聪,郭文安,冯世平,杨师杰.Skyrmion crystals in pseudo-spin-1/2 Bose–Einstein condensates[J].中国物理 B,2013(11):211-215. |
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| 作者姓名： | 张聪 郭文安 冯世平 杨师杰 |
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| 基金项目： | Project supported by the National Basic Research Program of China （Grant No. 2012CB821403） and the National Natural Science Foundation of China （Grant No.11175018）. |
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| 摘 要： | Exact two-dimensional solutions are constructed for the pseudo-spin-1/2 Bose–Einstein condensates,which are described by the coupled nonlinear Gross–Pitaevskii equations where the intra-and inter-species coupling constants are assumed to be equal.The equations are decoupled by means of re-combinations of the nonlinear terms of the hyperfine states according to the spatial dimensions.The stationary solutions form various spin textures which are identified as skyrmion crystals.In a special case,a crystal of skyrmion–anti-skyrmion pairs is formed in the soliton limit.
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| 关 键 词： | Gross–Pitaevskii equations exact solutions skyrmion crystals |
Skyrmion crystals in pseudo-spin-1/2 Bose-Einstein condensates |
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| Zhang Cong,Guo Wen-An,Feng Shi-Ping,Yang Shi-Jie.Skyrmion crystals in pseudo-spin-1/2 Bose-Einstein condensates[J].Chinese Physics B,2013(11):211-215. |
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| Authors: | Zhang Cong Guo Wen-An Feng Shi-Ping Yang Shi-Jie |
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| Institution: | [1]Department of Physics, Beijing Normal University, Beijing 100875, China [2]State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 1 O0190, China |
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| Abstract: | Gross-Pitaevskii equations, exact solutions, skyrmion crystals |
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| Keywords: | Gross-Pitaevskii equations exact solutions skyrmion crystals |
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