2 papers
hep-th2018
The Exact Foldy-Wouthuysen Transformation for a Dirac Theory Revisited
Bruno Gonçalves, Mário M. Dias Júnior, Baltazar J. Ribeiro
The Exact Foldy-Wouthuysen transformation (EFWT) method is generalized here. In principle, it is not possible to construct the EFWT to any Hamiltonian. The transformation condition…
physics.optics2016
Birefringence phenomena revisited
Dante D. Pereira, Baltazar J. Ribeiro, Bruno Gonçalves
The propagation of electromagnetic waves is investigated in the context of the isotropic and nonlinear dielectric media at rest in the eikonal limit of the geometrical optics. Taki…