Bogomol'nyi Bounds for Two-Dimensional Lattice Systems
Bogomol'nyi Bounds for Two-Dimensional Lattice Systems
复制标题
Bogomolnyi 的二维晶格系统界限
DOI：
10.1007/s002200050065
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
R. S. Ward
中科院分区：
文献类型：
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作者：
R. S. Ward
二维空间中的O(3)sigma模型和阿贝尔Higgs模型给出了能量的拓扑(Bogomol‘nyi)下界。本文提出了保持Bogomol‘nyi界的这些系统的格子形式。一个结果是，晶格上的瞬子/孤子/涡旋具有高度的稳定性。
The O(3) sigma model and abelian Higgs model in two space dimensions admit topological (Bogomol'nyi) lower bounds on their energy. This paper proposes lattice versions of these systems which maintain the Bogomol'nyi bounds. One consequence is that instantons/solitons/vortices on the lattice then have a high degree of stability.