72 citations · 596 across the 31 of their papers we have counts for
31 papers
One-loop corrections in the z=3 Lifshitz extension of QED
M. Gomes, F. Marques, T. Mariz +3
In this work we study a z=3 Horava-Lifshitz-like extension of QED in (3+1) dimensions. We calculate the one-loop radiative corrections to the two and three-point functions of the g…
Two-loop effective potential for the Wess-Zumino model in 2+1 dimensions
R. V. Maluf, A. J. da Silva
By using superfield techniques, the effective potential of the Wess-Zumino model in 2+1 dimensions is computed off-shell up to two loops. It is shown that supersymm…
Dynamical Lorentz symmetry breaking in a 4D four-fermion model at finite temperature
M. Gomes, T. Mariz, J. R. Nascimento +3
In a 4D four-fermion model we study the dynamical restoration of Lorentz and CPT symmetries at finite temperature. We evaluate the gap equation both at zero and at finite temperatu…
Dynamical Lorentz symmetry breaking in 3D and charge fractionalization
B. Charneski, M. Gomes, T. Mariz +2
We analyze the breaking of Lorentz invariance in a 3D model of fermion fields self-coupled through four-fermion interactions. The low-energy limit of the theory contains various su…
Spontaneous Lorentz symmetry breaking and cosmological constant
T. Mariz, J. R. Nascimento, A. Yu. Petrov +2
This paper has been withdrawn by the authors due to need of essential revision.
On the ambiguities in the effective action in Lorentz-violating gravity
M. Gomes, T. Mariz, J. R. Nascimento +3
We investigate the occurrence of ambiguities for Lorentz-violating gravitational Chern-Simons term. It turns out that this term is accompanied by a coefficient depending on an unde…