64 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Instituto Tecnológico de AeronáuticaBR10 papers
- University of MinhoPT4 papers
- QuantaLabPT3 papers
- East Texas A&M UniversityUS2 papers
- International Iberian Nanotechnology LaboratoryPT2 papers
- Universidade de São PauloBR2 papers
- University of CoimbraPT2 papers
- Centro Brasileiro de Pesquisas FísicasBR1 paper
- Centro de Física da Universidade de CoimbraPT1 paper
- Instituto de Aeronáutica e EspaçoBR1 paper
- Instituto de Estudos Avançados da Universidade de São Paulo1 paper
- Instituto Nacional de Pesquisas EspaciaisBR1 paper
16 papers
Hair imprints of the gravitational decoupling and hairy black hole spectroscopy
V. F. Guimarães, R. T. Cavalcanti, R. da Rocha
Hairy black holes by gravitational decoupling (GD) are probed to derive the gravitational waveform produced by perturbation theory applied to these compact objects. Using the Regge…
A low-cost plasma source aimed for medical applications using Ar as the working gas
Fellype do Nascimento, Bruno Henrique da Silva Leal, Konstantin Georgiev Kostov
Due to advances in equipment and intense research on plasma biomedical applications over the past few years, plasma devices are now suitable for clinical use. It has been demonstra…
Enhancing Multirotor Drone Efficiency: Exploring Minimum Energy Consumption Rate of Forward Flight under Varying Payload
Ayush Patnaik, Nicolas Michel, Xinfan Lin
Multirotor unmanned aerial vehicle is a prevailing type of aircraft with wide real-world applications. Energy efficiency is a critical aspect of its performance, determining the ra…
Variation of the fundamental constants over the cosmological time: veracity of Dirac's intriguing hypothesis
Cláudio Nassif, A. C. Amaro de Faria
We investigate how the universal constants, including the fine structure constant, have varied since the early universe close to the Planck energy scale (GeV) and,…
Quantization of graphene plasmons
Beatriz A. Ferreira, B. Amorim, A. J. Chaves +1
In this article we perform the quantization of graphene plasmons using both a macroscopic approach based on the classical average electromagnetic energy and a quantum hydrodynamic…
Propagation of surface plasmons on plasmonic Bragg gratings
A. J. Chaves, N. M. R. Peres
We use coupled-mode theory to describe the scattering of a surface-plasmon polariton (SPP) from a square wave grating (Bragg grating) of finite extension written on the surface of…
A Note on Norton's Dome
Christine C. Dantas
"Norton's Dome" is an example of a Newtonian system that violates the Lipschitz condition at a single point, leading to non-unique solutions (indeterminism). Here we reformulate th…
High sensitivity fiber optic angular displacement sensor and its application for detection of ultrasound
João M. S. Sakamoto, Cláudio Kitano, Gefeson M. Pacheco +1
In this paper, we report the development of an intensity modulated fiber optic sensor for angular displacement measurement. This sensor was designed to present high sensitivity, li…
Excitonic effects in the optical properties of 2D materials: An equation of motion approach
A. J. Chaves, R. M. Ribeiro, T. Frederico +1
We present a unified description of the excitonic properties of four monolayer transition-metal dichalcogenides (TMDC's) using an equation of motion method for deriving the Bethe-S…
Excited states of the Wick-Cutkosky model with the Nakanishi representation in the Light-Front framework
R. Pimentel, W. de Paula
The Wick-Cutkosky model is investigated using the framework of the Nakanishi Perturbative Integral Representation projected in the Light-Front hyperplane for an s-wave amplitude. W…
Two-fermion Bethe-Salpeter Equation in Minkowski Space: the Nakanishi Way
Giovanni Salme', Wayne de Paula, Tobias Frederico +1
The possibility of solving the Bethe-Salpeter Equation in Minkowski space, even for fermionic systems, is becoming actual, through the applications of well-known tools: i) the Naka…
Quantum Field Theory Approach to the Optical Conductivity of Strained and Deformed Graphene
W. de Paula, a. Chaves, O. Oliveira +1
The computation of the optical conductivity of strained and deformed graphene is discussed within the framework of quantum field theory in curved spaces. The analytical solutions o…
Current Status of Nuclear Physics Research
C. A. Bertulani, M. S. Hussein
In this review we discuss the current status of research in nuclear physics which is being carried out in different centers in the World. For this purpose we supply a short account…
A Self-Consistent Extrapolation Method for the Complex Permittivity and Permeability Based on Finite Frequency Data
Christine C. Dantas, Mirabel. C. Rezende, Simone S. Pinto
We describe a method of extrapolation based on a "truncated" Kramers-Kronig relation for the complex permittivity () and permeability () parameters of a material, based on fi…
Dark/Visible Parallel Universes and Big Bang Nucleosynthesis
C. A. Bertulani, T. Frederico, J. Fuqua +3
We develop a model for visible matter-dark matter interaction based on the exchange of a massive gray boson called herein the Mulato. Our model hinges on the assumption that all kn…
Hot isostatic pressing of bulk magnesium diboride: mechanical and superconducting properties
S. S. Indrakanti, V. F. Nesterenko, M. B. Maple +3
Two different hot isostatic pressing cycles (HIPing) were investigated to synthesize bulk MgB2 samples: a "standard" cycle where a low vessel pressure is maintained while heating t…