120 citations · 275 across the 18 of their papers we have counts for
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Remarks on some vacuum solutions of scalar-tensor cosmological models
V. B. Bezerra, C. Romero, G. Grebot +2
We present a class of exact vacuum solutions corresponding to de Sitter and warm inflation models in the framework of scalar-tensor cosmologies. We show that in both cases the fiel…
Charged Tensor Matter Fields and Lorentz Symmetry Violation via Spontaneous Symmetry Breaking
L. P. Colatto, A. L. A. Penna, W. C. Santos
We consider a model with a charged vector field along with a Cremmer-Scherk-Kalb-Ramond (CSKR) matter field coupled to a U(1) gauge potential. We obtain a natural Lorentz symmetry…
Remarks on the Causality, Unitarity and Supersymmetric Extension of the Lorentz and CPT-Violating Maxwell-Chern-Simons Model
A. P. Baeta Scarpelli, H. Belich, J. L. Boldo +3
The gauge-invariant Chern-Simons-type Lorentz- and CPT-breaking term is here re-assessed and issues like causality, unitarity, spontaneous gauge-symmetry breaking are investigated.…