| Three-dimensional solitons in two-component Bose–Einstein condensates |
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| 作者姓名： | 刘永恺 杨师杰 |
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| 作者单位： | Department of Physics, Beijing Normal University;State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences |
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| 摘 要： | ![]()
We investigate a kind of solitons in the two-component Bose–Einstein condensates with axisymmetric configurations in the R2×S1space. The corresponding topological structure is referred to as Hopfion. The spin texture differs from the conventional three-dimensional(3D) skyrmion and knot, which is characterized by two homotopy invariants. The stability of the Hopfion is verified numerically by evolving the Gross–Pitaevskii equations in imaginary time.
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| 关 键 词： | invariants texture verified Einstein topological imaginary normalized twist intuitive coordinates |
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