56 citations · 180 across the 15 of their papers we have counts for
5 papers · 1 filter
LIV effects on the quantum stochastic motion in an acoustic FRW-geometry
M. A. Anacleto, C. H. G. Bessa, F. A. Brito +3
It is well known in the literature that vacuum fluctuations can induce a random motion of particles which is sometimes called quantum Brownian motion or quantum stochastic motion.…
Improved constraints on violations of the Einstein equivalence principle in the electromagnetic sector with complementary cosmic probes
R. F. L. Holanda, S. H. Pereira, V. C. Busti +1
Recent results have shown that a field non-minimally coupled to the electromagnetic Lagrangian can induce a violation of the Einstein equivalence principle. { This kind of coupling…
An Analog Model for Light Propagation in Semiclassical Gravity
C. H. G. Bessa, V. A. De Lorenci, L. H. Ford
We treat a model based upon nonlinear optics for the semiclassical gravitational effects of quantum fields upon light propagation. Our model uses a nonlinear material with a nonzer…
Brownian Motion in Robertson-Walker Space-Times from electromagnetic Vacuum Fluctuations
Carlos H. G. Bessa, Valdir B. Bezerra, L. H. Ford
We consider classical particles coupled to the quantized electromagnetic field in the background of a spatially flat Robertson-Walker universe. We find that these particles typical…
On the existence of turning points in D-dimensionsal Schwarzschild-de Sitter and anti-de Sitter spacetimes
C. H. G. Bessa, J. A. S. Lima
We investigate the motion of a test particle in a d-dimensional, spherically symmetric and static space-time supported by a mass plus a -term. The motion is strongly depende…