| Texto completo | |
| Autor(es): |
Costa, Caio V.
;
Gitman, Dmitry M.
;
Shabad, Anatoly E.
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PHYSICA SCRIPTA; v. 90, n. 7, p. 6-pg., 2015-07-01. |
| Resumo | |
We consider a simple nonlinear (quartic in the fields) gauge-invariant modification of classical electrodynamics, to show that it possesses a regularizing ability sufficient to make the field energy of a point charge finite. The model is exactly solved in the class of static central-symmetric electric fields. Collation with quantum electrodynamics (QED) results in the total field energy of a point elementary charge about twice the electron mass. The proof of the finiteness of the field energy is extended to include any polynomial selfinteraction, thereby the one that stems from the truncated expansion of the Euler-Heisenberg local Lagrangian in QED in powers of the field strength. (AU) | |
| Processo FAPESP: | 14/08970-1 - Efeitos não lineares em problemas básicos da eletrodinâmica quântica |
| Beneficiário: | Dmitri Maximovitch Guitman |
| Modalidade de apoio: | Auxílio à Pesquisa - Pesquisador Visitante - Internacional |