论文标题
电动轴线和超导性
Electroweak axion string and superconductivity
论文作者
论文摘要
我们在DFSZ轴上模型中研究了用Electroweak仪表通量的轴弦字符串，并表明这些称为Electroweak Axion字符串的字符串可以表现出超导性，而无需费米子零模式。我们构建了三种类型的Electroweak Axion String解决方案。其中，带有$ W $ -FLUX的字符串在某些参数空间中最轻，这会导致稳定的超导宇宙弦。我们还表明，由于Peccei-Quinn比例比Electroweak量表高得多，大电流可以沿着弦流。这种大电流以相同的拓扑电荷引起轴突弦之间的净吸引力，这为早期宇宙中的轴弦形成y界面带来了一种新颖的可能性。
We study the axion strings with the electroweak gauge flux in the DFSZ axion model and show that these strings, called the electroweak axion strings, can exhibit superconductivity without fermionic zero modes. We construct three types of electroweak axion string solutions. Among them, the string with $W$-flux can be lightest in some parameter space, which leads to a stable superconducting cosmic string. We also show that a large electric current can flow along the string due to the Peccei-Quinn scale much higher than the electroweak scale. This large current induces a net attractive force between the axion strings with the same topological charge, which opens a novel possibility that the axion strings form Y-junctions in the early universe.
