S. I. Feranchuk | Searcharxiv

arXiv2014

Regularization of the vacuum fluctuation energy in quantum electrodynamics

It is shown that the total energy of the vacuum fluctuations of the electron-positron and electromagnetic fields in the quantum electrodynamics can be equal to zero if the "bare" electron charge is chosen by adequate way. The value of "bare" electron charge calculated from this condition proves to be in a qualitative agreement with that one which was found independently from the solution of the "physical electron" problem.

physics.gen-ph↗

arXiv2006

Soliton-like excitation in large-alpha QED

The nonperturbative analysis of the one-particle excitation of the electron-positron field is made in the paper. The standard form of quantum electrodynamics (QED) is used but the coupling constant $α_0$ is supposed to be of a large value ($α_0 \gg 1$). It is shown that in this case the quasi-particle excitation can be produced together with the non-zero scalar component of the electromagnetic field. Self-consistent equations for spatially localized charge distribution coupled with an electromagnetic field are derived. Soliton-like solution with a nonzero charge for these equations are calculated numerically. The solution proves to be unique if the coupling constant is fixed. It leads to the condition of charge quantization if the non-overlapping $n$-soliton states are considered. It is also proved that the dispersion law of the soliton-like excitation is consistent with Lorentz invariance of the QED equations.

math-ph↗