Cosmic strings with twisted magnetic flux lines and wound-strings in extra dimensions
Cosmic strings with twisted magnetic flux lines and wound-strings in extra dimensions
复制标题
具有扭曲磁通线和额外维度缠绕弦的宇宙弦
DOI：
10.1088/1475-7516/2012/09/030
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
J. Yokoyama
中科院分区：
文献类型：
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作者：
M. Lake;J. Yokoyama
在阿贝尔-希格斯模型中，我们考虑了Nielsen-Olesen ansatz的推广，该模型描述了涡旋核心中具有扭曲磁通线的弦。该解不具有圆柱对称，这导致在核心轴周围和弦的长度上都存在动量守恒分量。此外，我们考虑了在k黎巴嫩诺夫-斯特拉斯勒几何的紧致空间中具有旋转测地线绕组的模型off -strings，并确定了当环路从长弦网络切断时保证能量和动量守恒的匹配条件。我们发现决定宏观弦动力学的运动常数表达式可以与扭曲通量线弦的运动常数表达式一致，这表明拓扑缺陷中的场论结构可以模拟f弦的额外维度效应。
We consider a generalization of the Nielsen-Olesen ansatz, in the abelian-Higgs model, 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 ofF-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 forF-strings may be mimicked by field-theoretic structure in topological defects.