arXiv subjects

Gilmar S. Dias

Publications and source records attributed to Gilmar S. Dias.

3 recordsLinked to original sources

arXiv2000

Non-Parallel Electric and Magnetic Fields in a Gravitational Background, Stationary Gravitational Waves and Gravitons

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 shown to exist. Next, we analyse the possibility of finding stationary gravitational waves in nature. Finally, we construct a D=4 effective quantum gravity model. Tree-level unitarity is verified.

hep-th↗

arXiv2000

Non Parallels Electric and Magnetic Fields in a F.R.W. Cosmology. Classical and Quantum Gravitational Implications

At first, we discuss parallels electric and magnetic fields solutions in a gravitational background. Then, considering eletromagnetic and gravitational waves symmetries we show a particular solution for stationary gravitational waves. Finally we consider gravitation as a gauge theory (effective gravitational theory), evaluate the propagators of the model, analyze the corresponding quantum excitations and verify (confirm) the tree-level unitarity at many places of the model.

hep-th↗

arXiv1996

Non-parallel Electric and Magnectic Fields in a Gravitational Background, Stationary Gravitational Waves and Gravitons

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 to exist. Next, we analyse the possibility of finding stationary gravitational waves in de nature. Finaly, We construct a D=4 effective quantum gravity model. Tree-level unitarity is verified.

hep-th↗