1-17 New Topological Structure in Skyrme Model

• 作者: Zhang Pengming Zou Liping
• 来源期刊: 中国科学院近代物理研究所和兰州重离子研究装置年报：英文版
• 学科: 物理学
• 年，卷（期）: 2016,（1）
• 页码范围: 27-28
• 页数: 2页
• 分类号: O4

摘要

Recently it has been pointed out that the skyrmions carry two independent topologies,the baryon topology and the monopole topology[1].According to this philosophy,the baryon number B of skyrmions could be decomposed to the monopole number m and shell(radial)number n,so that the baryon number is given by B=mn.This indicates that the skyrmion should be described by two types of topology.In this letter we show that baby skyrmions can also be generalized to have two topologiesπ1(S1)andπ2S2,and thus they are classified by two topological numbers m and n.This confirms the result in Ref.[1]that skyrmions carry two independent topologies.