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Electroweak axion string and superconductivity
2021
Journal of High Energy Physics
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 zeromodes. 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
doi:10.1007/jhep06(2021)172
fatcat:qhiqax6a6be7fij5jdlxpqj3rq