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
52 papers · 1 filter
Quantum bicritical point and phase separation in a frustrated Heisenberg ladder
D. S. Almeida, R. R. Montenegro-Filho
We use the density matrix renormalization group (DMRG) and a hard-core boson map to investigate the quantum phase transitions present in the phase diagram of the frustrated Heisenb…
Polar order, shear banding, and clustering in confined active matter
Daniel Canavello, Rubens H. Damascena, Leonardo R. E. Cabral +1
We investigate the collective behavior of sterically interacting self-propelled particles confined in a harmonic potential. Our theoretical and numerical study unveils the emergenc…
Flat and bent branes in Born-Infeld-like scalar field models
I. Andrade, M. A. Marques, R. Menezes
In this work, we investigate the presence of thick branes modeled by a single scalar field with Born-Infeld-like dynamics. We consider the 4-dimensional metric being Minkowski, de…
InsPLAD: A Dataset and Benchmark for Power Line Asset Inspection in UAV Images
André Luiz Buarque Vieira e Silva, Heitor de Castro Felix, Franscisco Paulo Magalhães Simões +5
Power line maintenance and inspection are essential to avoid power supply interruptions, reducing its high social and financial impacts yearly. Automating power line visual inspect…
Rank-two reflexive sheaves on the projective space with second Chern class equal to four
Marcos Jardim, Alan Muniz
We study rank-two reflexive sheaves on with , expanding on previous results for . We show that every spectrum not previously ruled out is realized.…
Picosecond cubic and quintic nonlinearity of lithium niobate at 532 nm
Hongzhen Wang, Georges Boudebs, Cid de Araújo
The nonlinear (NL) optical response of bulk lithium niobate (LiNbO) was investigated at 532 nm using the second harmonic of a Nd:YAG laser delivering pulses of 12 ps. The exper…
Cosmic string influence on a 2D hydrogen atom and its relationship with the Rytova-Keldysh logarithmic approximation in semiconductors
Frankbelson dos S. Azevedo, Izael A. Lima, Gallileu Genesis +2
A two-dimensional hydrogen atom offers a promising alternative for describing the quantum interaction between an electron and a proton in the presence of a straight cosmic string.…
An inhomogeneous nonlinear parabolic equation with concave nonlinearity
Miguel Loayza, Mohamed Majdoub
We establish both the existence and uniqueness of non-negative global solutions for the nonlinear heat equation , , in the whole space $\mathbb{R…
Linear decomposition of approximate multi-controlled single qubit gates
Jefferson D. S. Silva, Thiago Melo D. Azevedo, Israel F. Araujo +1
We provide a method for compiling approximate multi-controlled single qubit gates into quantum circuits without ancilla qubits. The total number of elementary gates to decompose an…
Weyl channels for multipartite systems
Tomas Basile, Jose Alfredo de Leon, Alejandro Fonseca +2
Quantum channels, a subset of quantum maps, describe the unitary and non-unitary evolution of quantum systems. We study a generalization of the concept of Pauli maps to the case of…
Detecting Semantic Conflicts with Unit Tests
Léuson Da Silva, Paulo Borba, Toni Maciel +5
Branching and merging are common practices in collaborative software development, increasing developer's productivity. Despite such benefits, developers need to merge software and…
Estimated Age of the Universe in Fractional Cosmology
Emanuel Wallison de Oliveira Costa, Raheleh Jalalzadeh, Pedro Felix da Silva Júnior +2
Our proposed cosmological framework, which is based on fractional quantum cosmology, aims to address the issue of synchronicity in the age of the universe. To achieve this, we have…
Emergence of fractal cosmic space from fractional quantum gravity
P. F. da Silva Junior, E. W. de Oliveira Costa, S. Jalalzadeh
Based on Padmanabhan's theory, the spatial expansion of the Universe can be explained by the emergence of space as cosmic time progresses. To further explore this idea, we have dev…
How life-table right-censoring affected the Brazilian Social Security Factor: an application of the gamma-Gompertz-Makeham model
Filipe Costa de Souza, Wilton Bernardino, Silvio Cabral Patricio
Automatic Adjustment Mechanisms (AAM) are legal instruments that help social security systems respond to demographic and economic changes. In Brazil, the Social Security Factor (SS…
Surface-state mediated spin-to-charge conversion in Sb films via bilateral spin current injection
E. Gomes, J. E. Abrão, E. S. Santos +4
The spin-to-charge conversion phenomena is investigated in a trilayer structure consisting of Co(12 nm)/Sb(t)/Py(12 nm), where the thickness t of the antimony layer is varied. Usin…
On the minimal algebraic complexity of the rank-one approximation problem for general inner products
Khazhgali Kozhasov, Alan Muniz, Yang Qi +1
We study the algebraic complexity of Euclidean distance minimization from a generic tensor to a variety of rank-one tensors. The Euclidean Distance (ED) degree of the Segre-Verones…
Exploring orbital-charge conversion mediated by interfaces with copper through spin-orbital pumping
E. Santos, J. E. Abrão, A. S. Vieira +3
We investigated how different materials affect the orbital-charge conversion in heterostructures with the naturally oxidized cooper capping layer. When we added a thin layer of $Cu…
Collisions between kinks with long-range tails: a simple and efficient method
João G. F. Campos, Azadeh Mohammadi
We construct initial configurations for the scattering between kinks with long-range tails. For this purpose, we exploit kink solutions in the presence of Bogomol'nyi-Prasad-Sommer…
Modified cosmology from quantum deformed entropy
S. Jalalzadeh, H. Moradpour, P. V. Moniz
In Ref. [S. Jalalzadeh, Phys. Lett. B 829 (2022) 137058], Jalalzadeh established that the thermodynamical entropy of a quantum-deformed black hole with horizon area can be writ…
Poincaré sphere symmetries in four-wave mixing with orbital angular momentum
Mateus Rattes Lima da Motta, Gabriel Bié Alves, Antonio Zelaquett Khoury +1
We explore a degenerate four-wave mixing process induced by transversely structured light beams in a rubidium vapor cell. In particular, we consider the nonlinear interaction drive…
Predictive Authoring for Brazilian Portuguese Augmentative and Alternative Communication
Jayr Pereira, Rodrigo Nogueira, Cleber Zanchettin +1
Individuals with complex communication needs (CCN) often rely on augmentative and alternative communication (AAC) systems to have conversations and communique their wants. Such sys…
The Urban Toolkit: A Grammar-based Framework for Urban Visual Analytics
Gustavo Moreira, Maryam Hosseini, Md Nafiul Alam Nipu +3
While cities around the world are looking for smart ways to use new advances in data collection, management, and analysis to address their problems, the complex nature of urban iss…
Evolving division of labor in a response threshold model
José F. Fontanari, Viviane M. de Oliveira, Paulo R. A. Campos
The response threshold model explains the emergence of division of labor (i.e., task specialization) in an unstructured population by assuming that the individuals have different p…
Distillation of quantum non-Markovianity
Thiago Melo D. Azevedo, Cristhiano Duarte, Nadja K. Bernardes
Non-Markovianty of open quantum systems dynamics is a physically relevant property which is usually associated with the backflow of (quantum) information. Using this paradigmatic m…