Universidade Federal do Piauí

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19992026

most citedA Novel Approach for Estimating Truck Factors

106 citations

Showing 2024Show all

11 papers · 1 filter

math.AP2024

On a quadratic gradient natural term for the Pucci extremal operators

José Francisco de Oliveira, João Marcos do Ó, Pedro Ubilla +1

We introduce a quadratic gradient type term for the Pucci extremal operators. Our analysis demonstrates that this proposed term extends the classical quadratic gradient term associ…

cond-mat.stat-mech2024★ 5 cited

Quantum percolation on Lieb Lattices

W. S. Oliveira, J. Pimentel de Lima, Raimundo R. dos Santos

We theoretically investigate the quantum percolation problem on Lieb lattices in two and three dimensions. We study the statistics of the energy levels through random matrix theory…

hep-ph2024★ 10 cited

Dispersive analysis of the isospin breaking in the $X (3872) \to J / ψ π^{+} π^{-}$ and $X (3872) \to J / ψ π^{+} π^{0} π^{-}$ decays

Jorgivan Morais Dias, Teng Ji, Xiang-Kun Dong +5

We analyze the latest LHCb data on the $π^{+} π^{-}$ spectrum in the isospin-violating $X (3872) \to J / ψ π^{+} π^{-}$ decay, based on dispersion theory to deal with the $π π$ final state interac…

cond-mat.mes-hall2024★ 4 cited

Topological characterization of modified Kane-Mele-Rashba models via local spin Chern marker

Sebastião dos Anjos Sousa Júnior, Marcus V. de S. Ferraz, José P. de Lima +1

In this work, we use the local spin Chern marker (LSCM) recently introduced by Baù and Marrazzo [Phys. Rev. B 110, 054203 (2024)] to analyze the topology of the ground-state electr…

quant-ph2024★ 10 cited

Enhancing Gaussian quantum metrology with position-momentum correlations

João C. P. Porto, Lucas S. Marinho, Pedro R. Dieguez +2

Quantum metrology offers significant improvements in several quantum technologies. In this work, we propose a Gaussian quantum metrology protocol assisted by initial position-momen…

math.AP2024

Normalized solutions for INLS equation with critical Hardy-Sobolev type nonlinearities

Mykael Cardoso, José Francisco de Oliveira, Olímpio Miyagaki

We are interested in finding prescribed $L^{2}$ -norm solutions to inhomogeneous nonlinear Schrödinger (INLS) equations. For $N \geq 3$ we treat the equation with combined Hardy-Sobolev…