Numerical investigation of monopole chains
Numerical investigation of monopole chains
复制标题
单极链的数值研究
DOI：
10.1088/0305-4470/38/42/013
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
V. Khemani
中科院分区：
文献类型：
--
作者：
G. Dunne;V. Khemani
我们给出了用Nahm数据构造的SU(2)BPS单极子链的数值结果。长链极限表现出横向于周期方向的不对称行为，这种不对称在较短的间隔时变得更加明显。这一分析的动机是在3DSU(2)Georgi？Glasshow模型中寻找半经典的有限温度瞬子，但在周期极限下，瞬子链要么有对数发散作用，要么自己被淘汰。
We present numerical results for chains of SU(2) BPS monopoles constructed from Nahm data. The long chain limit reveals an asymmetric behaviour transverse to the periodic direction, with the asymmetry becoming more pronounced at shorter separations. This analysis is motivated by a search for semiclassical finite temperature instantons in the 3D SU(2) Georgi?Glashow model, but it appears that in the periodic limit the instanton chains either have logarithmically divergent action or wash themselves out.