13 papers
Linearized Treatment of Scalar perturbations in the Asymptotic Cosmological Model
J. L. Cortes, J. Indurain
In this paper the implications of a recently proposed phenomenological model of cosmology, the Asymptotic Cosmological Model (ACM), on the behavior of scalar perturbations are stud…
An extension of the cosmological standard model with a bounded Hubble expansion rate
J. L. Cortes, J. Indurain
The possibility of having an extension of the cosmological standard model with a Hubble expansion rate constrained to a finite interval is considered. Two periods of accelerate…
Noncommutativity in Field Space and Lorentz Invariance Violation
J. M. Carmona, J. L. Cortes, J. Gamboa +1
The connection between Lorentz invariance violation and noncommutativity of fields in a quantum field theory is investigated. A new dispersion relation for a free field theory with…
Testing Lorentz invariance violations in the tritium beta-decay anomaly
J. M. Carmona, J. L. Cortes
We consider a Lorentz non-invariant dispersion relation for the neutrino, which would produce unexpected effects with neutrinos of few eV, exactly where the tritium beta-decay anom…
A new mechanism of mass protection for fermions
J. L. Alonso, Ph. Boucaud, J. M. Carmona +3
We present a way of protecting a Dirac fermion interacting with a scalar (Higgs) field from getting a mass from the vacuum. It is obtained through an implementation of translationa…
Topological Excitations in the Thirring model
J. L. Cortes, J. Gamboa, I. Schmidt +1
The quantization of the massless Thirring model in the light-cone using functional methods is considered. The need to compactify the coordinate in the light-cone spacetime im…