256 citations · 1.7k across the 84 of their papers we have counts for
6 papers · 1 filter
Scalar Casimir effects in a Lorentz violation scenario induced by the presence of constant vectors
E. R. Bezerra de Mello, M. B. Cruz
In this work, we consider a theoretical model that presents violation of the Lorentz symmetry in the approach of Quantum Field Theory. The theoretical model adopted consists of a r…
Finite temperature charge and current densities around a cosmic string in AdS spacetime with compact dimension
E. R. Bezerra de Mello, W. Oliveira dos Santos, A. A. Saharian
For a massive scalar field with a general curvature coupling parameter, we investigate the finite temperature contributions to the Hadamard function and to the charge and current d…
Cosmological evolution with negative energy densities
A. A. Saharian, R. M. Avagyan, E. R. Bezerra de Mello +3
For general number of spatial dimensions we investigate the cosmological dynamics driven by a cosmological constant and by a source with barotropic equation of state. It is assumed…
Quantum Brownian motion for a particle in analog expanding cosmologies in the presence of disclination
E. J. B. Ferreira, E. R. Bezerra de Mello, H. F. Santana Mota
In this paper we study the quantum brownian motion of a scalar point particle in the analog Friedman-Robertson-Walker spacetime in the presence of a disclination, in a condensed ma…
Fermionic vacuum polarization induced by a non-Abelian vortex
E. R. Bezerra de Mello, H. F. Santana Mota
In this paper, we analyze the fermionic condensate (FC) and the vacuum expectation value (VEV) of the energy-momentum tensor associated with an isospin- charged massive fermio…
Cosmic string and brane induced effects on the fermionic vacuum in AdS spacetime
S. Bellucci, W. Oliveira dos Santos, E. R. Bezerra de Mello +1
We investigate the combined effects of a magnetic flux-carrying cosmic string and a brane on the fermionic condensate (FC) and on the vacuum expectation value (VEV) of the energy-m…