Mostrando ítems 1-20 de 24

    • Accumulation horizons and period adding in optically injected semiconductors lasers 

      Bonatto, Cristian; Gallas, Jason Alfredo Carlson (2007) [Artículo de periódico]
      We study the hierarchical structuring of islands of stable periodic oscillations inside chaotic regions in phase diagrams of single-mode semiconductor lasers with optical injection. Phase diagrams display remarkable ...
    • Autosimilaridades en el espacio de parámetros del circuito de chua con no-linearidades discretas y continuas 

      Ramírez Ávila, Gonzalo Marcelo; Gallas, Jason Alfredo Carlson (2011) [Artículo de periódico]
      Se muestran autosimilariades en el espacio de parámetros del circuito de Chua tanto con una no-linealidad discontinua como con una no-linealidad cúbica. Mediante un análisis sencillo de estas estructuras, se calcula de ...
    • Breakdown of the ponderomotive approximation as an acceleration mechanism in wave-particle nonlinear dynamics 

      Marini, Samuel; Peter, Eduardo Alcides; Oliveira, Glaucius Iahnke de; Rizzato, Felipe Barbedo (2017) [Artículo de periódico]
      In the present analysis, we study the dynamics of charged particles submitted to the action of slowly modulated electromagnetic carrier waves. While the velocity of the particles remains smaller than the carrier’s ...
    • Caos determinístico : uma abordagem com o software Insight Maker focada em discussões sobre determinismo e previsibilidade 

      Weber, Rodrigo Pereira; Heidemann, Leonardo Albuquerque; Martins, Jorge Simões de Sá (2023) [Artículo de periódico]
      A dinâmica não-linear, demonstrando a existência de eventos hipersensíveis às condições iniciais, sacudiu as bases da filosofia da Ciência, principalmente no que remete ao poder preditivo do conhecimento científico. No ...
    • Caracterización de sistemas dinámicos mediante periodicidades 

      Ramírez Ávila, Gonzalo Marcelo; Gallas, Jason Alfredo Carlson (2011) [Artículo de periódico]
      Se caracterizan diferentes sistemas din´amicos descritos por mapas mediante el c´alculo de periodicidades. Este m´etodo es alternativo a los diagramas de bifurcaci´on utilizando los exponentes de Lyapunov ya que no s´olo ...
    • Coherence and incoherence in extended broadband triplet interaction 

      Oliveira, Glaucius Iahnke de; Rizzato, Felipe Barbedo (2008) [Artículo de periódico]
      We study the transition from coherent to incoherent dynamics in a nonlinear triplet of broadband combs of waves. Expanding the analysis of previous works, we investigate what happens when the band of available modes is ...
    • Conductance fluctuations in high mobility monolayer graphene : nonergodicity, lack of determinism and chaotic behavior 

      Cunha, Carlo Requiao da; Mineharu, Masaaki; Matsunaga, Masahiro; Matsumoto, Naoki; Chuang, Chiashain; Ochiai, Yuichi; Kim, Gil-Ho; Watanabe, Kenji; Taniguchi, Takashi; Ferry, David K.; Aoki, Nobuyuki (2016) [Artículo de periódico]
      We have fabricated a high mobility device, composed of a monolayer graphene flake sandwiched between two sheets of hexagonal boron nitride. Conductance fluctuations as functions of a back gate voltage and magnetic field ...
    • Dynamics of antiproton plasma in a timedependent harmonic trap 

      Soares, Luiz Gustavo Ferreira; Haas, Fernando (2021) [Artículo de periódico]
      An antiproton plasma confined in a quasi-1D device is described in terms of a self-consistent fluid formulation using a variational approach. Unlike previous treatments, the use of the time-dependent variational method ...
    • Effects of rotation on the nonlinear friction of a damped dimer sliding on a periodic substrate 

      Neide, Italo Gabriel; Kenkre, V. M.; Goncalves, Sebastian (2010) [Artículo de periódico]
      Rotational effects on the nonlinear sliding friction of a damped dimer moving over a substrate are studied within a largely one-dimensional model. The model consists of two masses connected rigidly, internally damped, and ...
    • Electron holes in a regularized kappa background 

      Haas, Fernando; Fichtner, Horst; Scherer, Klaus (2023) [Artículo de periódico]
      The pseudopotential method is used to derive electron hole structures in a suprathermal plasma with a regularized κ probability distribution function background. The regularized character allows the exploration of small κ ...
    • Electron holes in a κ distribution background with singularities 

      Haas, Fernando (2021) [Artículo de periódico]
      The pseudo-potential method is applied to derive diverse propagating electron–hole structures in a nonthermal or κ particle distribution function background. The associated distribution function Ansatz reproduces the Schamel ...
    • Estructura del espacio de parámetros para las ecuaciones del circuito de chua 

      Ramírez Ávila, Gonzalo Marcelo; Gallas, Jason Alfredo Carlson (2008) [Artículo de periódico]
      Se estudia en forma detallada el espacio de par´ametros para las ecuaciones correspondientes al circuito de Chua con dos y tres par´ametros que en primera instancia confirman los resultados obtenidos en [1] y adem´as muestra ...
    • Globally coupled multiattractor maps : mean field dynamics controlled by the number of elements 

      Janosi, Imre Miklos; Gallas, Jason Alfredo Carlson (1999) [Artículo de periódico]
      We report an investigation of a system of N globally coupled maps able to support multiattractors. For these systems the mean field dynamics is controlled by the number of elements in the initial partition of each basin ...
    • Hyperchaotic dynamics for light polarization in a laser diode 

      Bonatto, Cristian (2018) [Artículo de periódico]
      It is shown that a highly randomlike behavior of light polarization states in the output of a free-running laser diode, covering the whole Poincar´e sphere, arises as a result from a fully deterministic nonlinear process, ...
    • Intrinsic modulational alfvenic turbulence 

      Oliveira, Luiz Paulo Luna de; Rizzato, Felipe Barbedo; Chian, Abraham Chian-Long (1997) [Artículo de periódico]
      The nonlinear dynamics of a nite-amplitude Alfv en wave in a dispersive modulational regime is analysed. Use is made of a conservative model to show that turbulence may arise via deterministic chaos. The behaviour of the ...
    • Mean-field theory of vector spin models on networks with arbitrary degree distributions 

      Metz, Fernando Lucas; Peron, Thomas (2022) [Artículo de periódico]
      Understanding the relationship between the heterogeneous structure of complex networks and cooperative phenomena occurring on them remains a key problem in network science. Mean-field theories of spin models on networks ...
    • Nonintegrable dynamics of the triplet-triplet spatiotemporal interaction 

      Lopes, Sergio Roberto; Rizzato, Felipe Barbedo (1999) [Artículo de periódico]
      In this paper we examine the coupling of two wave triplets sharing two common modes. The analysis is performed in the solitonic sector of the parameter space where uncoupled solutions departing from linearly unstable ...
    • Nonlinear dynamics in isotropic and anisotropic nagneto-optical traps 

      Haas, Fernando; Soares, Luiz Gustavo Ferreira (2022) [Artículo de periódico]
      We briefly review some recent advances in the field of nonlinear dynamics of atomic clouds in magneto-optical traps. A hydrodynamical model in a three-dimensional geometry is applied and analyzed using a variational approach. ...
    • Nonlinear dynamics of inhomogeneous mismatched charged particle beams 

      Nunes, Roger Pizzato; Rizzato, Felipe Barbedo (2012) [Artículo de periódico]
      This work analyzes the transversal dynamics of an inhomogeneous and mismatched charged particle beam. The beam is azimuthally symmetric, initially cold, and evolves in a linear channel permeated by an external constant ...
    • Nonlinear dynamics of relativistic charged particle beams 

      Nunes, Roger Pizzato; Rizzato, Felipe Barbedo (2011) [Artículo de periódico]
      The idea behind this work is to analyze the transversal dynamics of a relativistic charged particle beam. The beam is azimuthally symmetric, focused by a constant magnetic field and supposed to be initially cold. While ...