具有扭曲磁通量线的宇宙弦和额外维中的缠绕弦
Cosmic strings with twisted magnetic flux lines and wound-strings in extra dimensions
摘要：
我们考虑一个推广的Nielsen-Olesen模型，在一个阿贝尔-希格斯模型与外部耦合的电荷，它描述了字符串扭曲的磁通量线的涡核。该解不具有圆柱对称性，这导致了守恒动量分量的存在，无论是围绕芯轴还是沿着弦的长度。此外，我们考虑一个模型的F-弦旋转，测地线绕组在紧凑的空间的Klebanov-Strassler几何和确定匹配条件，确保能量和动量守恒时，从长弦网络切断回路。我们发现，决定宏观弦动力学的运动常数的表达式可以与扭曲磁通线弦的运动常数的表达式一致，这表明F弦的额外维效应可以用拓扑缺陷中的场论结构来模拟。
英文摘要：
We consider a generalization of the Nielsen-Olesen ansatz, in an abelian-Higgs model with externally coupled charge, which describes strings with twisted magnetic flux lines in the vortex core. The solution does not possess cylindrical symmetry, which leads to the existence of components of conserved momentum, both around the core-axis and along the length of the string. In addition, we consider a model of F-strings with rotating, geodesic windings in the compact space of the Klebanov-Strassler geometry and determine matching conditions which ensure energy and momentum conservation when loops chop off from the long-string network. We find that the expressions for the constants of motion, which determine the macroscopic string dynamics, can be made to coincide with those for the twisted flux line string, suggesting that extra-dimensional effects for F-strings may be mimicked by field- theoretic structure in topological defects.
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