176 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of VictoriaCA27 papers
- Universidade de BrasíliaBR25 papers
- Universidade de São PauloBR24 papers
- University of AntwerpBE14 papers
- University of AlbertaCA12 papers
- Centro Brasileiro de Pesquisas FísicasBR11 papers
- Universidade Federal da ParaíbaBR10 papers
- Universidade Federal de Minas GeraisBR10 papers
- Centre National de la Recherche ScientifiqueFR8 papers
- Universidade Estadual de Campinas (UNICAMP)BR8 papers
- University of GeorgiaUS8 papers
- Instituto de Física de São CarlosBR7 papers
16 papers · 1 filter
Electronic and optical properties of Mn impurities in ultra-thin ZnO nanowires: insights from density-functional theory
A. L. Rosa, L. L. Tacca, E. N. Lima +1
In this work we have employed density-functional theory with hybrid functionals to investigate the atomic and electronic structure of bare and hydrogenated Mn doped ZnO nanowires w…
Vectorial and spinorial perturbations in Galileon Black Holes: Quasinormal modes, quasiresonant modes and stability
E. Abdalla, B. Cuadros-Melgar, Jeferson de Oliveira +2
In this work we have considered a model that includes the interaction of gravity and matter fields with Galilean invariance (the so-called derivative coupling) as well as some corr…
Dynamical evolution of non-minimally coupled scalar field in spherically symmetric de Sitter spacetimes
R. D. B. Fontana, Jeferson de Oliveira, A. B. Pavan
We investigate the dynamical behavior of a scalar field non-minimally coupled to Einstein's tensor and Ricci scalar in geometries of asymptotically de Sitter spacetimes. We show th…
On Scalar Electromagnetism in Phase Space
R. G. G. Amorim, J. S da Cruz Filho, A. F. Santos +1
In this paper the interaction of a scalar field and the electromagnetic field in phase space is analyzed. The scattering process is calculated up to first order in the Planck const…
Stefan-Boltzmann law and Casimir effect for the scalar field in phase space at finite temperature
R. G. G. Amorim, J. S da Cruz Filho, A. F. Santos +1
In this paper we use the scalar field constructed in phase space to analyze the analogous Stefan-Boltzman law and Casimir effect both of them at finite temperature. The temperature…
Evidence of hot and cold spots on the Fermi surface of LiFeAs
J. Fink, J. Nayak, E. D. L. Rienks +10
Angle-resolved photoemission spectroscopy (ARPES) is used to study the energy and momentum dependence of the inelastic scattering rates and the mass renormalization of charge carri…
Adsorption of flexible polymer chains on a surface: Effects of different solvent conditions
P. H. L. Martins, J. A. Plascak, M. Bachmann
Polymer chains undergoing a continuous adsorption-desorption transition are studied through extensive computer simulations. A three-dimensional self-avoiding walk lattice model of…
Lorentz violation, Möller scattering and finite temperature
A. F. Santos, Faqir C. Khanna
Lorentz and CPT symmetries may be violated in new physics that emerges at very high energy scale, i.e., at the Planck scale. The differential cross section of the Möller scattering…
On causality violation in Lyra Geometry
W. D. R. Jesus, A. F. Santos
In this paper the causality issues are discussed in a non-Riemannian geometry, called Lyra geometry. It is a non-Riemannian geometry originated from Weyl geometry. In order to comp…
Three-dimensional black holes with quintessence
Jeferson de Oliveira, R. D. B. Fontana
We study a quintessential black hole solution in three dimensions, with mass and quintessence charge. By exploring the Carter-Penrose diagram, we show the presence of spacelike and…
Quantum power boost in a nonstationary cavity-QED quantum heat engine
A. V. Dodonov, D. Valente, T. Werlang
We show a quantum boost in the output power of a heat engine formed by a two-level system coupled to a single-mode cavity. The key ingredient here is the nonstationary regime achie…
Lorentz violation, Gravitoelectromagnetism and Bhabha Scattering at finite temperature
A. F. Santos, Faqir C. Khanna
Gravitoelectromagnetism (GEM) is an approach for the gravitation field that is described using the formulation and terminology similar to that of electromagnetism. The Lorentz viol…
Multipartite monogamous relations for Entanglement and Discord
J. S. S. Ferreira, D. Filenga, M. F. Cornelio +1
The distribution of quantum correlations in multipartite systems play a significant role in several aspects of the quantum information theory. While it is well known that these qua…
Lorentz Violation, Gravitoelectromagnetic Field and Bhabha Scattering
A. F. Santos, Faqir C. Khanna
Lorentz symmetry is a fundamental symmetry in the Standard Model (SM) and in General Relativity (GR). This symmetry holds true for all models at low energies. However at energies n…
Riccati-type pseudopotentials, conservation laws and solitons of deformed sine-Gordon models
H. Blas, H. F. Callisaya, J. P. R. Campos
Deformed sine-Gordon (DSG) models , with being the deformed potential, are considered in the context of the Riccati-type pse…
Magnetic and Structural Properties of the Iron Oxychalcogenides LaOFeO (= S, Se)
B. Freelon, Z. Yamani, Ian Swainson +8
We present the results of structural and magnetic phase comparisons of the iron oxychalcogenides LaOFeO ( = S, Se). Elastic neutron scattering reveals…