840 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Universidade Federal Rural de PernambucoBR89 papers
- Universidade Federal da ParaíbaBR67 papers
- Universidade Federal de AlagoasBR44 papers
- Universidade Federal de Santa MariaBR41 papers
- Universidade de São PauloBR37 papers
- Centre National de la Recherche ScientifiqueFR34 papers
- University of CalgaryCA31 papers
- Universidade de PernambucoBR26 papers
- University of AkronUS21 papers
- Universidade Federal do Rio Grande do NorteBR19 papers
- École de Technologie SupérieureCA17 papers
- Universidade Estadual de Campinas (UNICAMP)BR17 papers
54 papers · 1 filter
Open-Source 5G Core Platforms: A Low-Cost Solution and Performance Evaluation
Maria Barbosa, Marcelo Silva, Ednelson Cavalcanti +1
An essential component for the Fifth Generation of Mobile Networks deployments is the 5G Core (5GC), which bridges the 5G Radio Access Network (RAN) to the rest of the Internet. So…
Open RAN-Enabled Deep Learning-Assisted Mobility Management for Connected Vehicles
Maria Barbosa, Kelvin Dias
Connected Vehicles (CVs) can leverage the unique features of 5G and future 6G/NextG networks to enhance Intelligent Transportation System (ITS) services. However, even with advance…
Schmidt quantum compressor
Israel F. Araujo, Hyeondo Oh, Nayeli A. Rodríguez-Briones +1
This work introduces the Schmidt quantum compressor, an innovative approach to quantum data compression that leverages the principles of Schmidt decomposition to encode quantum inf…
Continuous variable entanglement in a cold-atoms mirrorless optical parametric oscillator
G. C. Borba, R. S. N. Moreira, L. S. Cruz +3
In this work, we explore both the internal and external atomic degrees of freedom to observe quantum entanglement between the modes produced by a mirrorless optical parametric osci…
Relativistic Lévy processes
Lucas G. B. de Souza, M. G. E. da Luz, E. P. Raposo +2
We study sums of independent and identically distributed random velocities in special relativity. We show that the resulting one-dimensional velocity distributions are not only sta…
Polarization and dynamic phases of aligning active matter in periodic obstacle arrays
Daniel Canavello, C. Reichhardt, C. J. O Reichhardt +1
We numerically examine a system of monodisperse self-propelled particles interacting with each other via simple steric forces and aligning torques moving through a periodic array o…
Non-Markovian to Markovian decay in structured environments with correlated disorder
Mariana O. Monteiro, Nadja K. Bernardes, Eugene M. Broni +2
Manipulating the dynamics of open quantum systems is a crucial requirement for large-scale quantum computers. Finding ways to overcome or extend decoherence times is a challenging…
Understanding Code Understandability Improvements in Code Reviews
Delano Oliveira, Reydne Santos, Benedito de Oliveira +3
Motivation: Code understandability is crucial in software development, as developers spend 58% to 70% of their time reading source code. Improving it can improve productivity and r…
A Random-Key Optimizer for Combinatorial Optimization
Antonio A. Chaves, Mauricio G. C. Resende, Martin J. A. Schuetz +4
This paper introduces the Random-Key Optimizer (RKO), a versatile and efficient stochastic local search method tailored for combinatorial optimization problems. Using the random-ke…
Enhancing non-classical correlations for light scattered by an ensemble of cold two-level atoms
Lucas S. Marinho, Michelle O. Araújo, Wellington Martins +1
We report the enhancement of quantum correlations for biphotons generated via spontaneous four-wave mixing in an ensemble of cold two-level atoms. This enhancement is based on the…
Regression Model for Speckled Data with Extremely Variability
A. D. C. Nascimento, J. M. Vasconcelos, R. J. Cintra +1
Synthetic aperture radar (SAR) is an efficient and widely used remote sensing tool. However, data extracted from SAR images are contaminated with speckle, which precludes the appli…
Fast Data-independent KLT Approximations Based on Integer Functions
A. P. Radünz, D. F. G. Coelho, F. M. Bayer +2
The Karhunen-Loève transform (KLT) stands as a well-established discrete transform, demonstrating optimal characteristics in data decorrelation and dimensionality reduction. Its ab…
Criticality at work: scaling in the mouse cortex enhances performance
Gustavo G. Cambrainha, Daniel M. Castro, Nivaldo A. P. de Vasconcelos +2
The critical brain hypothesis posits that neural systems operate near a phase transition, optimizing the processing of information. While scale invariance and non-Gaussian dynamics…
Chiral Nonlinear Polaritonics with van der Waals Metasurfaces
Connor Heimig, Alexander A. Antonov, Dmytro Gryb +10
In the strong-coupling regime, the interaction between light and matter reaches a hybridization state where the photonic and material components are inseparably linked. Using tailo…
Extensions on Low-complexity DCT Approximations for Larger Blocklengths Based on Minimal Angle Similarity
A. P. Radünz, L. Portella, R. S. Oliveira +2
The discrete cosine transform (DCT) is a central tool for image and video coding because it can be related to the Karhunen-Loève transform (KLT), which is the optimal transform in…
Cooperative atomic emission from a line of atoms interacting with a resonant plane surface
Michelle O. Araujo, Joao Carlos de Aquino Carvalho, Philippe W. Courteille +1
Cooperative effects such as super- and subradiance can be observed in the fluorescence emitted by a system of N atoms in vacuum, after interaction with a laser beam. In the vicinit…
Upper semicontinuity for a class of nonlocal evolution equations with Neumann condition
Flank D. M. Bezerra, Silvia Sastre-Gomez, Severino H. da Silva
In this paper we consider the following nonlocal autonomous evolution equation in a bounded domain in \[ \partial_t u(x,t) =- h(x)u(x,t) + g \Big(\int_Ω J(x,y)u(…
Equivalent formulations for steady periodic water waves of fixed mean-depth with discontinuous vorticity
Silvia Sastre-Gómez
In this work we prove the equivalence between three different weak formulations of the steady periodic water wave problem where the vorticity is discontinuous. In particular, we pr…
Quantum-state texture and gate identification
Fernando Parisio
We introduce and explore the notion of texture of an arbitrary quantum state, in a selected basis. In the first part of this letter we develop a resource theory and show that state…
Quantum Multiplexer Simplification for State Preparation
José A. de Carvalho, Carlos A. Batista, Tiago M. L. de Veras +2
The initialization of quantum states or Quantum State Preparation (QSP) is a basic subroutine in quantum algorithms. In the worst case, general QSP algorithms are expensive due to…
Curio: A Dataflow-Based Framework for Collaborative Urban Visual Analytics
Gustavo Moreira, Maryam Hosseini, Carolina Veiga +6
Over the past decade, several urban visual analytics systems and tools have been proposed to tackle a host of challenges faced by cities, in areas as diverse as transportation, wea…
Massive scalar perturbations in Kerr Black Holes: near extremal analysis
João Paulo Cavalcante, Maurício Richartz, Bruno Carneiro da Cunha
We study quasinormal modes of massive scalar perturbations in Kerr black holes using the isomonodromic method. For arbitrary scalar masses and black hole spins , we nume…
Van der Waals heterostructure metasurfaces: atomic-layer assembly of ultrathin optical cavities
Luca Sortino, Jonas Biechteler, Lucas Lafeta +5
Photonics has been revolutionized by breakthroughs in optical metasurfaces and layered two-dimensional materials. Yet, integrating these two fields in a singular system has remaine…
Coherent Acoustic Phonons in Plasmonic Nanoparticles: Elastic Properties and Dissipation at Low Temperatures
Hilario D. Boggiano, Thomas Possmayer, Luis Morguet +7
We studied the frequency and quality factor of mechanical plasmonic nanoresonators as a function of temperature, ranging from ambient to 4 K. Our investigation focused on individua…