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178 papers · 1 filter

cs.LO2024★ 2 cited

Modal Logics -- RNmatrices vs. Nmatrices

Marcelo E. Coniglio, Paweł Pawłowski, Daniel Skurt

In this short paper we will discuss the similarities and differences between two semantic approaches to modal logics - non-deterministic semantics and restricted non-deterministic…

gr-qc2024★ 1 cited

Stability of the spacetime of a magnetized compact object

Eveling C. Ribeiro, L. Formigari, Marcos R. Ribeiro +5

We investigate the stability of scalar perturbations around a magnetized stationary compact object in General Relativity. The considered object is one of the simplest exact solutio…

physics.acc-ph2024★ 4 cited

Theoretical models for longitudinal coupled-bunch instabilities driven by harmonic cavities in electron storage rings

Murilo B. Alves

We present a theoretical framework for analyzing longitudinal coupled-bunch instabilities in double-rf systems with even filling patterns, accounting for potential-well distortion…

cond-mat.mes-hall2024★ 8 cited

Enhanced Elastocaloric Effects in γ-graphyne

Guilherme B. Kanegae, Marcelo L. Pereira Junior, Douglas S. Galvão +2

The global emphasis on sustainable technologies has become a paramount concern for nations worldwide. Specifically, numerous sustainable methods are being explored as promising alt…

gr-qc2024★ 2 cited

Chaotic orbital dynamics of pulsating stars around black holes surrounded by dark matter halos

Tiago S. Amancio, Ricardo A. Mosna, Ronaldo S. S. Vieira

We analyze the orbital dynamics of spherical test bodies in ``black hole surrounded by dark matter halo'' spherically symmetric spacetimes. When the test body pulsates periodically…

physics.chem-ph2024

Selective tracking of charge carrier dynamics in CuInS2 quantum dots

Andrés Burgos-Caminal, Brener R. C. Vale, André F. V. Fonseca +20

CuInS2 quantum dots have been studied in a broad range of applications, but despite this, the fine details of their charge carrier dynamics remain a subject of intense debate. Two…

eess.SP2024★ 6 cited

Transfer Learning with Active Sampling for Rapid Training and Calibration in BCI-P300 Across Health States and Multi-centre Data

Christian Flores, Marcelo Contreras, Ichiro Macedo +1

Machine learning and deep learning advancements have boosted Brain-Computer Interface (BCI) performance, but their wide-scale applicability is limited due to factors like individua…

cond-mat.mtrl-sci2024★ 2 cited

Angular Dependence of Four Mechanical Properties of Graphynes

Guilherme B. Kanegae, Alexandre F. Fonseca

Graphyne is a porous two-dimensional carbon allotrope of graphene that possesses interesting physical properties, including non-null bandgap. It is composed of carbon hexagonal rin…

cs.CV2024★ 9 cited

Are Explanations Helpful? A Comparative Analysis of Explainability Methods in Skin Lesion Classifiers

Rosa Y. G. Paccotacya-Yanque, Alceu Bissoto, Sandra Avila

Deep Learning has shown outstanding results in computer vision tasks; healthcare is no exception. However, there is no straightforward way to expose the decision-making process of…

hep-th2024

Metaheuristic Generation of Brane Tilings

Yang-Hui He, Vishnu Jejjala, Tomás S. R. Silva

The combinatorics of dimer models on brane tilings describe a large class of four-dimensional gauge theories that afford quiver descriptions and have toric moduli s…

nucl-ex2024★ 1 cited

First measurement of symmetric cumulants of hexagonal flow harmonics in PbPb collisions at = 5.02 TeV

ALICE Collaboration

Correlations between event-by-event fluctuations of anisotropic flow harmonics are measured in PbPb collisions at a center-of-mass energy per nucleon pair of 5.02 TeV, as record…

nucl-ex2024★ 8 cited

Measurement of light-by-light scattering and the Breit-Wheeler process, and search for axion-like particles in ultraperipheral PbPb collisions at = 5.02 TeV

CMS Collaboration

Measurements of light-by-light scattering (LbL, ) and the Breit-Wheeler process (BW, ) are reported in ultraperipheral PbPb collisions at…

hep-ph2024

Predictions for dimuon production in high-energy neutrino-proton collisions using the color dipole model

Caetano Ternes, Daniel Almeida Fagundes, Edgar Huayra +1

Interactions of high-energy neutrinos with matter can be studied through the angular separation observed in dimuon production, an observable particularly sensitive to the transvers…

physics.acc-ph2024★ 4 cited

Semi-analytical algorithms to study longitudinal beam instabilities in double rf systems

A. Gamelin, V. Gubaidulin, M. B. Alves +1

Double rf systems are critical for achieving the parameters of 4th-generation light sources. These systems, comprising both main and harmonic rf cavities, relax statistical collect…

hep-ex2024★ 2 cited

Measurement of the inclusive WZ production cross section in pp collisions at = 13.6 TeV

CMS Collaboration

The inclusive WZ production cross section is measured in proton-proton collisions at a centre-of-mass energy of 13.6 TeV, using data collected during 2022 with the CMS detector, co…

math.RA2024★ 3 cited

On polynomial equations over split octonions

Artem Lopatin, Alexander N. Rybalov

Working over the split octonions over an algebraically closed field, we solve all polynomial equations in which all the coefficients but the constant term are scalar. As a conseque…

cs.LG2024★ 53 cited

Adaptive Client Selection with Personalization for Communication Efficient Federated Learning

Allan M. de Souza, Filipe Maciel, Joahannes B. D. da Costa +4

Federated Learning (FL) is a distributed approach to collaboratively training machine learning models. FL requires a high level of communication between the devices and a central s…

cond-mat.soft2024★ 5 cited

Drag reduction during the side-by-side motion of a pair of intruders in a granular medium

D. D. Carvalho, Y. Bertho, A. Seguin +2

When several intruders move in a granular medium, coupling effects are observed, the motion of one intruder affecting that of others. In this paper, we investigate experimentally h…

physics.flu-dyn2024★ 1 cited

Forces and grain-grain contacts in bidisperse beds sheared by viscous fluids

Jaime Oswaldo Gonzalez Maya, Erick de Moraes Franklin

In a recent paper (Gonzalez et al., 2023), we investigated the motion of grains within a granular bed sheared by a viscous fluid, and showed how segregation and hardening occur in…

math.RA2024

The Embedding Problem in Algebras with Involution

Jonatan Andres Gomez Parada

Let be an algebraically closed field of characteristic zero, and let and be two simple algebras with involution over . In this note we study the embedding problem fo…

gr-qc2024

Unruh-deWitt detector in impulsive plane wave spacetimes

João Paulo M. Pitelli, Ricardo A. Mosna

We investigate the response function of an inertial Unruh-deWitt detector in an impulsive plane wave spacetime. Through symmetry considerations applied to the Wightman function, we…

physics.geo-ph2024★ 2 cited

On the effect of two-direction seasonal flows on barchans and the origin of occluded dunes

Willian Righi Assis, Danilo da Silva Borges, Erick de Moraes Franklin

We inquire into the morphodynamics of barchans under seasonal flows. For that, we carried out grain-scale numerical computations of a subaqueous barchan exposed to two-directional…

hep-ph2024★ 2 cited

Testing the RG Running of the Leptonic Dirac CP Phase with Reactor Neutrinos

Shao-Feng Ge, Chui-Fan Kong, Pedro Pasquini

We propose the possibility of using the near detector at reactor neutrino experiments to probe the renormalization group (RG) running effect on the leptonic Dirac CP phase . A…

hep-ex2024★ 3 cited

Constraints on standard model effective field theory for a Higgs boson produced in association with W or Z bosons in the H decay channel in proton-proton collisions at = 13 TeV

CMS Collaboration

A standard model effective field theory (SMEFT) analysis with dimension-six operators probing nonresonant new physics effects is performed in the Higgs-strahlung process, where the…