发表机构
Observatório Nacional（国家天文台）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
该论文通过引入电场和磁场希格斯标量场扩展对偶电动力学，在磁标量获得真空期望值后，磁荷被屏蔽而电荷保持库仑相互作用，并探讨了屏蔽磁单极子作为暗物质候选的可能性。
AI 中文摘要
我们通过引入电场和磁场希格斯标量场，扩展了对偶电动力学的拉格朗日形式。这些标量场与进入电场和磁场扇区的曼德尔施塔姆非局域势耦合。我们考虑真空中仅磁标量具有非零期望值的情况。尽管标量耦合是非局域的，广义麦克斯韦方程仍保持局域性。在此相中，局域电势保持无质量极点，而磁扇区获得质量。因此，电相互作用在大距离上表现为库仑型，而极点-极点及电荷-极点相互作用变为短程。磁荷按照斯维卡定理的意义被屏蔽，而电荷则不被屏蔽。狄拉克条件作为微观电耦合和磁耦合的量子化规则，继承自对称相。我们还评论了被屏蔽的磁单极子作为可能的暗扇区自由度。
英文摘要
We extend a Lagrangian formulation of dual electrodynamics by introducing electric and magnetic Higgs scalar fields. The scalars couple to Mandelstam nonlocal potentials which enter the electric and magnetic sectors. We consider the vacuum in which only the magnetic scalar has a nonzero expectation value. The generalised Maxwell equations remain local even though the scalar couplings are nonlocal. In this phase the local electric potential keeps a massless pole while the magnetic sector acquires a mass. The electric interaction is therefore Coulombian at large distances while the pole-pole and charge-pole interactions become short ranged. The magnetic charge is then screened in the sense of the Swieca theorem while the electric charge is not. The Dirac condition is inherited from the symmetric phase as a quantisation rule for the microscopic electric and magnetic couplings. We also comment on screened monopoles as possible dark sector degrees of freedom.
Comments6 pages, no figures
