256 citations · 1.7k across the 84 of their papers we have counts for
8 papers · 1 filter
Casimir effect for parallel metallic plates in cosmic string spacetime
E. R. Bezerra de Mello, A. A. Saharian, A. Kh. Grigoryan
We evaluate the renormalized vacuum expectation values (VEVs) of electric and magnetic fields squared and the energy-momentum tensor for the electromagnetic field in the geometry o…
On the motion of a test particle around a global monopole in a modified gravity
T. R. P. Caramês, E. R. Bezerra de Mello, M. E. X. Guimarães
In this paper we suggest an approach to analyse the motion of a test particle in the spacetime of a global monopole within a -like modified gravity. The field equations are w…
Fermionic Casimir densities in a conical space with a circular boundary and magnetic flux
E. R. Bezerra de Mello, F. Moraes, A. A. Saharian
The vacuum expectation value (VEV) of the energy-momentum tensor for a massive fermionic field is investigated in a (2+1)-dimensional conical spacetime in the presence of a circula…
Vacuum polarization induced by a cosmic string in anti-de Sitter spacetime
E. R. Bezerra de Mello, A. A. Saharian
In this paper we investigate the vacuum expectation values (VEVs) of the field squared and the energy-momentum tensor associated with a massive scalar quantum field induced by a ge…
Relativistic quantum dynamics of a charged particle in cosmic string spacetime in the presence of magnetic field and scalar potential
E. R. Figueiredo Medeiros, E. R. Bezerra de Mello
In this paper we analyze the relativistic quantum motion of charged spin-0 and spin-1/2 particles in the presence of a uniform magnetic field and scalar potentials in the cosmic st…
Topological Casimir effect in compactified cosmic string spacetime
E. R. Bezerra de Mello, A. A. Saharian
We investigate the Wightman function, the vacuum expectation values of the field squared and the energy-momentum tensor for a massive scalar field with general curvature coupling i…
Vacuum polarization in a cosmic string spacetime induced by flat boundary
Eugênio R. Bezerra de Mello, Aram A. Saharian
In this paper we analyze the vacuum expectation values of the field squared and the energy-momentum tensor associated to a massive scalar field in a higher dimensional cosmic strin…
Gravitational Field of a Global Monopole in a Modified Gravity
T. R. P. Caramês, E. R. Bezerra de Mello, M. E. X. Guimarães
In this paper we analyze the gravitational field of a global monopole in the context of gravity. More precisely, we show that the field equations obtained are expressed in t…