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|Type:||Artigo de periódico|
|Title:||A Generalization Of Dirac Nonlinear Electrodynamics, And Spinning Charged Particles|
|Author:||Rodrigues Jr. W.A.|
Vaz Jr. J.
|Abstract:||In this paper-dedicated to Prof. Asim O. Barut-we generalize the Dirac non-linear electrodynamics by introducing two potentials (namely, the vector potential A and the pseudo-vector potential γ5B of the electromagnetic theory with charges and magnetic monopoles) and by imposing the pseudoscalar part of the product ωω* to be zero, with ω≡A+γ5B. We show that the field equations of such a theory possess a soliton-like solution which can represent a priori a "charged particle," since it is endowed with a Coulomb field plus the field of a magnetic dipole. The rest energy of the soliton is finite, and the angular momentum stored in its electromagnetic field can be identified-for suitable choices of the parameters-with the spin of the charged particle. Thus, this approach seems to yield a classical model for the charged (spinning) particle which does not encounter the problems met by earlier attempts in the same direction. © 1993 Plenum Publishing Corporation.|
|Editor:||Kluwer Academic Publishers-Plenum Publishers|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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