Articles de revista

Recent Submissions

  • Point process analysis of geographical diffusion of news in Argentina 

    Garcia, Lucio; Tirabassi, Giulio; Masoller Alonso, Cristina; Balenzuela, Pablo (Institute of Physics (IOP), 2025-01)
    Article
    Open Access
    The diffusion of information plays a crucial role in a society, affecting its economy and the well-being of the population. Characterizing the diffusion process is challenging because it is highly non-stationary and varies ...

  • Suppression of radiation in a momentum-nonconserving nonlinear interaction 

    Botey Cumella, Muriel; Martorell Pena, Jordi; Trull Silvestre, José Francisco; Vilaseca Alavedra, Ramon (2000-08)
    Article
    Open Access
    We have considered the quadratic nonlinear radiation from a thin dipole sheet in front of a mirror. Radiation at the second-harmonic (SH) frequency on incidence of a fundamental field can be inhibited or enhanced independently ...

  • Double fitting of Maker fringes to characterize near-surface and bulk second-order nonlinearities in poled silica 

    Qiu, Mingxin; Vilaseca Alavedra, Ramon; Botey Cumella, Muriel; Sellarès González, Jordi; Pi Vila, Francesc; Orriols Tubella, Gaspar (2000-06-05)
    Article
    Open Access
    An experimental analysis of the distribution and thickness of the bulk nonlinearity induced in poled silica is reported. The second-order susceptibility decreases exponentially from the anodic interface. Maker fringe ...

  • Noise-induced extreme events in Hodgkin–Huxley neural networks 

    Boaretto, Bruno R.; Macau, Elbert E.N.; Masoller Alonso, Cristina (2025-05)
    Article
    Restricted access - publisher's policy
    Extreme events are rare, large-scale deviations from typical system behavior that can occur in nonlinear dynamical systems. In this study, we explore the emergence of extreme events within a network of identical stochastic ...

  • Quantifying wave propagation in a chain of FitzHugh-Nagumo neurons 

    Messee Goulefack, Linda; Masoller Alonso, Cristina; Yamapi, R.; Anteneodo, Celia (Institute of Physics (IOP), 2025-03-01)
    Article
    Open Access
    Understanding how external stimuli propagate in neural systems is an important challenge in the fields of neuroscience and nonlinear dynamics. Despite extensive studies over several decades, this problem remains poorly ...

  • Characterizing the spike timing of a chaotic laser by using ordinal analysis and machine learning 

    Boaretto, Bruno R.; Macau, Elbert E.N.; Masoller Alonso, Cristina (Institute of Physics (IOP), 2024-04-01)
    Article
    Open Access
    Semiconductor lasers with optical feedback are well-known nonlinear dynamical systems. Under appropriate feedback conditions, these lasers emit optical pulses that resemble neural spikes. Influenced by feedback delay and ...

  • High-harmonic generation from subwavelength silicon films 

    Anson Hallman, Kent; Stengel, Sven; Wallace, Jaffray; Belli, Federico; Ferrera, Marcello; Vincenti, Maria Antonietta; Ceglia, Domenico de; Kivshar, Yu.; Akozbek, Neset; Mukhopadhyay, Shroddha; Trull Silvestre, José Francisco; Cojocaru, Crina; Scalora, Michael (2025-01-16)
    Article
    Open Access
    Recent years have witnessed significant developments in the study of nonlinear properties of various materials at the nanoscale. Often, experimental results on harmonic generation are reported without the benefit of suitable ...

  • Topological frustration triggers ultrafast dynamics of monolayer water confined in graphene slit pores 

    Das, Banshi; Ruiz Barragán, Sergio; Bagchi, Biman; Marx, Dominik (2024-12-11)
    Article
    Open Access
    Nanoconfined water exhibits astonishing properties that offer new opportunities in physics, biology and technology like energy-storage applications. Here we study such nanoconfined water using ab initio molecular dynamics ...

  • C–H bonds as gunctional groups: simultaneous generation of multiple stereocenters by enantioselective hydroxylation at unactivated tertiary C–H bonds 

    Palone, Andrea; Casadevall Franco, Guillem; Costas, Michael; Call Quintana, Arnau; Ruiz Barragán, Sergio; Bietti, Massimo; Costas Salgueiro, Miquel; Osuna Oliveras, Silvia (2023-07-11)
    Article
    Open Access
    Enantioselective C–H oxidation is a standing chemical challenge foreseen as a powerful tool to transform readily available organic molecules into precious oxygenated building blocks. Here, we describe a catalytic ...

  • Non-Hermitian mode management in periodically modulated waveguide amplifiers 

    Akhter, Mohammad Nayeem; Botey Cumella, Muriel; Herrero Simon, Ramon; Staliunas, Kestutis (American Institute of Physics (AIP), 2024-10-22)
    Article
    Open Access
    We propose an efficient mode management scheme in active nonlinear multimode fibers based on non-Hermitian potentials in the longitudinal direction with an antisymmetric transverse profile. The proposal takes advantage of ...

  • Hybrid patterns and solitonic frequency combs in non-hermitian Kerr cavities 

    Benadouda Ivars, Salim; Botey Cumella, Muriel; Milián Enrique, Carles; Herrero Simon, Ramon; Staliunas, Kestutis (American Institute of Physics (AIP), 2024-08-30)
    Article
    Open Access
    We unveil a new scenario for the formation of dissipative localized structures in nonlinear systems. Commonly, the formation of such structures arises from the connection of a homogeneous steady state with either another ...

  • Effect of current modulation on the coherence of a semiconductor laser with optical feedback 

    Duque Gijón, María; Masoller Alonso, Cristina; Tiana Alsina, Jordi (Optical Society of American (OSA), 2024-09-23)
    Article
    Open Access
    The use of laser light for illumination produces speckles that degrade image quality, and different strategies have been developed to mitigate speckle. Optical feedback can reduce the amount of speckle, since it can decrease ...

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