110 citations · 330 across the 10 of their papers we have counts for
10 papers
Non-metricities, torsion and fermions
G. de Berredo-Peixoto
I investigate the general extension of Einstein's gravity by considering the third rank non-metricity tensor and the torsion tensor. The minimal coupling to Dirac fields faces an a…
On the action for Weyssenhoff spin fluid and the Barbero-Immirzi parameter
Guilherme de Berredo-Peixoto, Cleber A. de Souza
It was showed by Perez and Rovelli in 2006 that the Holst action in gravity with torsion with massless and minimally coupling Dirac fermions gives rise to the four-fermion coupling…
Schrodinger equation in the space with cylindrical geometric defect and possible application to multi-wall nanotubes
G. de Berredo-Peixoto, M. O. Katanaev, E. Konstantinova +1
The recently invented cylindrical geometric space defect is applied to the electron behaviour in the system which can be regarded as a simplified model of a double-wall nanotube. B…
On the cosmological effects of the Weyssenhoff spinning fluid in the Einstein-Cartan framework
G. de Berredo-Peixoto, E. A. de Freitas
The effects of non-Riemannian structures in Cosmology have been studied long ago and are still a relevant subject of investigation. In the seventies, it was discovered that singula…
Quantum Effects in Softly Broken Gauge Theories in Curved Space-Times
I. L. Buchbinder, G. de Berredo-Peixoto, I. L. Shapiro
The soft breaking of gauge or other symmetries is the typical Quantum Field Theory phenomenon. In many cases one can apply the Stckelberg procedure, which means intro…
Inside the BTZ black hole
G. de Berredo-Peixoto, M. O. Katanaev
We consider static circularly symmetric solution of three-dimensional Einstein's equations with negative cosmological constant (the BTZ black hole). The case of zero cosmological c…