256 citations · 1.7k across the 84 of their papers we have counts for
10 papers · 1 filter
Casimir Effect in Horava-Lifshitz-like theories
I. J. Morales Ulion, E. R. Bezerra de Mello, A. Yu. Petrov
In this paper we consider a Lorentz-breaking scalar field theory within the Horava-Lifshtz approach. We investigate the changes that a space-time anisotropy produces in the Casimir…
Induced fermionic current by a magnetic tube in the cosmic spacetime
M. S. Maior de Sousa, R. F. Ribeiro, E. R. Bezerra de Mello
In this paper, we consider a charged massive fermionic quantum field in the space-time of an idealized cosmic string, in the presence of a magnetic field confined in a cylindrical…
Abelian cosmic string in the Starobinsky model of gravity
J. P. Morais Graça
In this paper, I analyze numerically the behaviour of the solutions corresponding to an Abelian string in the framework of the Starobinsky model. The role played by the quadratic t…
Induced vacuum bosonic current in a compactified cosmic string spacetime
E. A. F. Bragança, H. F. Santana Mota, E. R. Bezerra de Mello
We analyze the bosonic current densities induced by a magnetic flux running along an idealized cosmic string considering that the coordinate along its axis is compactified. We also…
Induced fermionic current at finite temperature
Eugênio R. Bezerra de Mello, Aram A. Saharian, Azadeh Mohammadi
Here we analyze the finite temperature expectation values of the charge and current densities for a massive fermionic quantum field with nonzero chemical potential, , induced by…
Non-Abelian cosmic strings in de Sitter and anti-de Sitter space
Antônio de Pádua Santos, Eugênio R. Bezerra de Mello
In this paper we investigate the non-Abelian cosmic string in de Sitter and anti-de Sitter spacetimes. In order to do that we construct the complete set of equations of motion cons…
Finite temperature bosonic charge and current densities in compactified cosmic string spacetime
Azadeh Mohammadi, Eugênio Ramos Bezerra de Mello
In this paper we study the expectation values of the induced charge and current densities for a massive bosonic field with nonzero chemical potential in the geometry of a higher di…
One-loop effective potential in nonlocal scalar field models
F. Briscese, E. R. Bezerra de Mello, A. Yu. Petrov +1
In this paper we apply the usual perturbative methodology to evaluate the one-loop effective potential in a nonlocal scalar field theory. We find that the effect induced by the non…
Vacuum densities for a brane intersecting the AdS boundary
E. R. Bezerra de Mello, A. A. Saharian, M. R. Setare
We investigate the Wightman function, the mean field squared and the vacuum expectation values of energy-momentum tensor for a scalar field in AdS spacetime, in the presence of a b…
Gravitating non-Abelian cosmic strings
Antônio de Pádua Santos, Eugênio R. Bezerra de Mello
In this paper we study regular cosmic string solutions of the non-Abelian Higgs model coupled with the Einstein gravity. In order to do that, we constructed a set of coupled differ…