48 citations · 210 across the 26 of their papers we have counts for
10 papers · 1 filter
Blackbody thermodynamics in the presence of Casimir's effect
E. S. Moreira, Heitor da Silva
This paper is a study of the electromagnetic radiation at temperature in a thin slab whose walls are made of a perfect conductor. The two large parallel walls of area are a…
Local thermal behaviour of a massive scalar field near a reflecting wall
V. A. De Lorenci, L. G. Gomes, E. S. Moreira
The mean square fluctuation and the expectation value of the stress-energy-momentum tensor of a neutral massive scalar field at finite temperature are determined near an infinite p…
Gravitational spectral shift caused by Casimir stresses
V. A. De Lorenci, L. G. Gomes, E. S. Moreira
The linearized Einstein field equations with the renormalized stress tensor of a massless quantum scalar field as source are solved in the 4-dimensional spacetime near an infinite…
Vacuum stress around a topological defect
V. A. De Lorenci, E. S. Moreira
We show that a dispiration (a disclination plus a screw dislocation) polarizes the vacuum of a scalar field giving rise to an energy momentum tensor which, as seen from a local ine…
Renormalized scalar propagator around a dispiration
V. A. De Lorenci, E. S. Moreira
The renormalized Feynman propagator for a scalar field in the background of a cosmic dispiration (a disclination plus a screw dislocation) is derived, opening a window to investiga…
Ambiguity in the evaluation of the effective action on the cone
D. Iellici, E. S. Moreira
An ambiguity in the computation of the one-loop effective action for fields living on a cone is illustrated. It is shown that the ambiguity arises due to the non-commutativity of t…