Studying boojums in N=2 theory with walls and vortices
Studying boojums in N=2 theory with walls and vortices
复制标题
研究带有壁和涡流的 N=2 理论中的 boojums
DOI：
10.1103/physrevd.72.025002
复制
发表时间：
2005
影响因子：
5
通讯作者：
A. Yung
中科院分区：
文献类型：
--
作者：
R. Auzzi;M. Shifman;A. Yung;A. Yung
我们研究了1/2 Bogomol'nyi-Prasad-Sommerfield（BPS）畴壁、1/2 BPS通量管（弦）及其1/4 BPS结。我们考虑最简单的例子N=2阿贝尔规范理论与两个带电物质超多重态，其中包含所有上述列出的扩展对象。特别是，我们专注于弦壁结（boojums）和计算它们的能量。它在红外区域是发散的。我们首先在（2+1）维有效理论中计算了畴壁上的能量，然后作为检验，从（3+1）维体理论的观点得到了同样的结果。接下来，我们考虑所有可能的弦壁结的几何形状和弦磁通的方向，研究boojums的相互作用。
We study 1/2 Bogomol'nyi-Prasad-Sommerfield (BPS) domain walls, 1/2 BPS flux tubes (strings), and their 1/4 BPS junctions. We consider the simplest example of N=2 Abelian gauge theory with two charged matter hypermultiplets which contains all of the above-listed extended objects. In particular, we focus on string-wall junctions (boojums) and calculate their energy. It turns out to be logarithmically divergent in the infrared domain. We compute this energy first in the (2+1)-dimensional effective theory on the domain wall and then, as a check, obtain the same result from the point of view of (3+1)-dimensional bulk theory. Next, we study interactions of boojums considering all possible geometries of string-wall junctions and directions of the string magnetic fluxes.