Soliton Collision in a Ferromagnetic Spin Chain Driven by a Magnetic Field |
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作者姓名: | 李再东 李录 梁九卿 |
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作者单位: | InstituteofTheoreticalPhysicsandDepartmentofPhysics,ShanxiUniversity,Taiyuan030006 |
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摘 要: | By employing an inverse-scattering transformation, the exact solution of an N-soliton train in the spin chain with a time-dependent magnetic field is derived. As a special case the one-soliton solution (N = 1) exhibits explicitly the spin precession around the magnetic field and periodic shape-variation induced by the time varying field as well. In terms of the general solution, inelastic two-soliton collision is analysed. The inelastic collision, by which we mean the soliton shape-change before and after collision, appears generally due to the time varying field.
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关 键 词: | 孤立子碰撞 磁场 铁磁性自旋链驱动 浑沌结构 反转散射传输 |
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