512 citations
- Universidade Federal de Juiz de ForaBR71 papers
- Centro Brasileiro de Pesquisas FísicasBR61 papers
- Universidade Federal do Rio de JaneiroBR52 papers
- Universidade do Estado do Rio de JaneiroBR20 papers
- Universidade Federal do Espírito SantoBR13 papers
- Universidade Estadual Paulista (Unesp)BR11 papers
- Universidade do Estado do Rio Grande do NorteBR10 papers
- Valongo ObservatoryBR10 papers
- Universidade Federal FluminenseBR9 papers
- University of Massachusetts AmherstUS9 papers
- National ObservatoryBR6 papers
- Universidade Católica de PetrópolisBR6 papers
244 papers
Thermostatistical analysis and negative heat capacities of Yukawa and Lee-Wick potentials in noncommutative phase spaces
Maria G. Sousa, Everton M. C. Abreu, Albert C. R. Mendes +1
In recent years, physical models based on noncommutative algebras have attracted considerable interest, as they provide a natural framework to incorporate a fundamental scale, ofte…
Matching the Alcubierre and Minkowski spacetimes
Osvaldo L. Santos-Pereira, Everton M. C. Abreu, Marcelo B. Ribeiro
This work analyzes the Darmois junction conditions matching an interior Alcubierre warp drive spacetime to an exterior Minkowski geometry. The joining hypersurface requires that th…
Shift vector sign reversal in the Alcubierre warp drive spacetime geometry and nonlinear Burgers-type dynamics
Osvaldo L. Santos-Pereira, Everton M. C. Abreu, Marcelo B. Ribeiro
This work investigates a sign reversal of the shift vector in the Alcubierre Warp Drive geometry and its effect on the nonlinear reduced structure of the Einstein equations. Previo…
Revisiting the CMB homogeneity scale: low multipoles removal effect and extragalactic foreground masking
Xiaoyun Shao, Facundo Toscano, Diego Garcia Lambas +5
The Cosmic Microwave Background (CMB) reaches homogeneity at relatively modest angular scales compared to the expectation of the standard CDM model revealing an important challe…
Effective potential of scalar Lee-Wick pseudo-electrodynamics
M. J. Neves
The study of effective potential for the scalar Lee-Wick pseudo-electrodynamics in one-loop is presented in this letter. The planar and non-local Lee-Wick pseudo-electrodynamics is…
The Lee-Wick-Chern-Simons pseudo-quantum electrodynamics
M. J. Neves
The Lee-Wick pseudo-quantum electrodynamics in the presence of a Chern-Simons term is studied in this paper. The paper starts with a non-local lagrangian density that sets the pseu…