The branch process of skyrmions in the fractional quantum Hall effect

被引：0
|
作者：
Duan, YS [1 ]
Zhang, XM [1 ]
Tian, M [1 ]
机构：
[1] Lanzhou Univ, Inst Theoret Phys, Lanzhou 730000, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2005年 / 22卷 / 08期
关键词：
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The branch process of the skyrmions in the fractional quantum Hall effect is studied from the phi-mapping topological current. It is shown that there exists a field zeta whose Hopf indices and Brouwer degrees characterize the topological structure of the skyrmions. Based on the bifurcation theory of the phi-mapping theory, it is found that the skyrmions can be generated or annihilated at the limit points and they encounter, split or merge at the bifurcation points of the new field zeta.
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页码：2047 / 2050
页数：4
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