50 citations · 127 across the 10 of their papers we have counts for
10 papers
One-loop calculations in Lorentz-breaking theories and proper-time method
A. F. Ferrari, J. Furtado, J. F. Assunção +2
We discuss applications of the proper-time method in various minimal Lorentz violating modifications of QED and present new results obtained with its use. Explicitly. we calculate…
Relativistic Bose-Einstein condensate in the rainbow gravity
J. Furtado, J. F. Assunção, C. R. Muniz
In this paper, we study the effects of a modified theory of gravity - the rainbow gravity - on the relativistic Bose-Einstein condensate (BEC). We initially discuss some formal asp…
Bose-Einstein condensation in Hořava-Lifshitz theory
J. Furtado, J. F. Assunção, A. C. A. Ramos
In this paper we study the corrections emergent from a Hořava-Lifshitz extension of the complex scalar sector to the Bose-Einstein condensation and to the thermodynamics parameters…
Nonanalyticity of the nonabelian five-dimensional Chern-Simons term
J. F. Assunção, J. Furtado, T. Mariz
In this work, we study the behavior of the nonabelian five-dimensional Chern-Simons term at finite temperature regime in order to verify the possible nonanalyticity. We employ two…
Effects of Lorentz violation in the Bose-Einstein condensation
J. Furtado, A. C. A. Ramos, J. F. Assunção
In this paper we study the corrections emergent from a Lorentz-violating CPT-odd extension of the complex scalar sector to the Bose-Einstein condensation and to the thermodynamics…
Dynamical Lorentz symmetry breaking in a tensor bumblebee model
J. F. Assunção, T. Mariz, J. R. Nascimento +1
In this paper, we formulate a theory of the second-rank antisymmetric (pseudo)tensor field minimally coupled to a spinor, calculate the one-loop effective potential of the (pseudo)…
Induced Chern-Simons modified gravity at finite temperature
J. F. Assuncao, T. Mariz, J. R. Nascimento +1
We calculate the linearized four-dimensional gravitational Chern-Simons term at the finite temperature, show its finiteness and explicitly demonstrate that its transversal part mat…
Dynamical Lorentz symmetry breaking in a 4D massless four-fermion model
J. F. Assuncao, T. Mariz, J. R. Nascimento +1
In this paper, we study the spontaneous Lorentz symmetry breaking for a four-dimensional massless four-fermion model. Our methodology is based on use of the rationalized propagator…
Nonanalyticity of the induced Carroll-Field-Jackiw term at finite temperature
J. F. Assuncao, T. Mariz, A. Yu. Petrov
In this paper, we discuss the behavior of the Carroll-Field-Jackiw (CFJ) coefficient arising due to integration over massive fermions, and the modification suffered by its to…
Radiatively induced CPT-odd Chern-Simons term in massless QED
J. F. Assuncao, T. Mariz
In this work, we study the radiative generation of the CPT-odd Lorentz-violating Chern-Simons term, arising from massless fermions. For this, we calculate the vacuum polarization t…