Origin of the magnetic momentum for regular electrically charged objects described by nonlinear electrodynamics coupled to gravity

摘要

Dynamical equations of nonlinear electrodynamics minimally coupled to gravity (NED-GR), admit the class of regular solutions, asymptotically Kerr-Newman for a distant observer, which describe regular electrically charged rotating black holes and spinning electromagnetic solitons with the angular momentum ma and the gyromagnetic ratio g = 2. Their basic generic feature is the existence of the interior de Sitter equatorial disk of the radius a with the equation-of-state p = -rho in the co-rotating frame, with the properties of a perfect conductor and ideal diamagnetic, and with the superconducting ring current along the edge of the disk, which replaces the ring singularity of the Kerr-Newman geometry and provides the non-dissipative source of electromagnetic fields and the origin of an intrinsic magnetic momentum for an electrically charged regular object described by NED-GR. Generic features of the electromagnetic soliton with the parameters of the electron, m(e)a = (h) over bar /2, g = 2 suggest that the intrinsic origin of the electron magnetic momentum can be a superconducting ring current evaluated as j(phi) = 79.277 A.