110 citations · 1.4k across the 73 of their papers we have counts for
6 papers · 1 filter
Superluminal neutrinos from Lorentz-violating dimension-5 operators
C. A. G. Almeida, M. A. Anacleto, F. A. Brito +1
We consider Lorentz- and CPT-violating dimension-5 operators to address the issue of superluminal neutrinos recently pointed out in OPERA experiments. We assume these operators in…
Inflationary Cosmology and Superluminal Neutrinos
C. A. G. Almeida, M. A. Anacleto, F. A. Brito +1
We show that in the presence of a distance dependent Lorentz-violating time-like background one may find superluminal neutrinos at some high energy such as OPERA's scale. The simil…
Supersonic Velocities in Noncommutative Acoustic Black Holes
M. A. Anacleto, F. A. Brito, E. Passos
In this paper we derive Schwarzschild and Kerr - like noncommutative acoustic black hole metrics in the (3+1)-dimensional noncommutative Abelian Higgs model. We have found that the…
An Analogy of the Quantum Hall Condutivity in a Lorentz-symmetry Violation Setup
L. R. Ribeiro, E. Passos, C. Furtado
We investigated some influences of unconventional physics, such Lorentz-symmetry violation, for quantum mechanical systems. In this context, we calculated a important contribution…
On the effective action of the vacuum photon splitting in Lorentz-violating QED
F. A. Brito, E. Passos, P. V. Santos
We consider one-loop radiative corrections from Lorentz- and CPT- violating extended QED to address the specific problem of finding explicitly an effective action describing amplit…
Superresonance effect from a rotating acoustic black hole and Lorentz symmetry breaking
M. A. Anacleto, F. A. Brito, E. Passos
We investigate the possibility of the acoustic superresonance phenomenon (analog to the superradiance in black hole physics), i.e., the amplification of a sound wave by reflection…