On the Fractional Electric Charge of a Magnetic Monopole at Nonzero Temperature

TL;DR

This paper investigates how nonzero temperature influences the fractional electric charge induced on magnetic monopoles, especially in the context of CP violation and potential dyons in the Weinberg-Salam model.

Contribution

It extends previous work to determine the temperature dependence of the fractional electric charge of small 't Hooft-Polyakov monopoles coupled to light fermions.

Findings

Fractional electric charge of monopoles depends on temperature.

Temperature effects could alter the charge of hypothetical dyons in the Weinberg-Salam model.

Results suggest a dynamic behavior of monopole charge at different temperatures.

Abstract

We extend recent discussions about the effect of nonzero temperature on the induced electric charge, due to CP violation, of a Dirac or an 't Hooft-Polyakov monopole. In particular, we determine the fractional electric charge of a very small 't Hooft-Polyakov monopole coupled to light fermions at nonzero temperature. If dyons with fractional electric charge exist in the Weinberg-Salam model, as recently suggested in the literature, then their charge too should be temperature dependent.