4 papers
N=2-Supersymmetric Dynamics of a Spin-1/2 Particle in an Extended External Field
G. S. Dias, J. A. Helayel-Neto
One considers the quantum dynamics of a charged spin-1/2 particle in an extended external eletromagnetic field that arises from the reduction of a 5-dimensional Abelian gauge theor…
Non Parallels Electric and Magnetic Fields in a F.R.W. Cosmology. Classical and Quantum Gravitational Implications
Carlos Pinheiro, J. A. Helayel-Neto, Gilmar S. Dias
At first, we discuss parallels electric and magnetic fields solutions in a gravitational background. Then, considering eletromagnetic and gravitational waves symmetries we show a p…
Non-Parallel Electric and Magnetic Fields in a Gravitational Background, Stationary Gravitational Waves and Gravitons
Carlos Pinheiro, J. A. Helayel-Neto, Gilmar S. Dias +1
The existence of an electromagnetic field with parallel electric and magnetic field components in the presence of a gravitational field is considered. A non-parallel solution is sh…
Non-parallel Electric and Magnectic Fields in a Gravitational Background, Stationary Gravitational Waves and Gravitons
Carlos Pinheiro, J. A. Helayel-Neto, Gilmar S. Dias
The existence of an electromagnectic field with parallel electric and magnetic components is readdressed in the presence of a gravitational field. A non-parallel solution is shown…