Topological objects in the O(3) nonlinear sigma model
Data(s) |
10/10/2007
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Resumo |
We study the topological defects in the nonlinear O(3) sigma model in terms of the decomposition of U(1) gauge potential. Time-dependent baby skyrmions are discussed in the (2 + 1)-dimensional spacetime with the CP1 field. Furthermore, we show that there are three kinds of topological defects-vortex lines, point defects and knot exist in the (3 + 1)-dimensional model, and their topological charges, locations and motions are determined by the phi-mapping topological current theory. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Zhang, PM (Zhang, Peng-Ming); Lee, XG (Lee, Xi-Guo); Wu, SF (Wu, Shao-Feng); Duan, YS (Duan, Yi-Shi).Topological objects in the O(3) nonlinear sigma model,MODERN PHYSICS LETTERS A,OCT 10 2007,22(31):2379-2386 |
Palavras-Chave | #nonlinear sigma model #topological soliton #knot |
Tipo |
期刊论文 |