Recent Submissions

  • Stochastic model for the species abundance problem 

    Pigolotti, Simone; Flammini, Alessandro; Maritan, Amos (2004-05-30)
    Article
    Open Access
    We propose a model based on coupled multiplicative stochastic processes to understand the dynamics of competing species in an ecosystem. This process can be conveniently described by a Fokker-Planck equation. We provide ...
  • Coarse-grained probabilistic automata mimicking chaotic systems 

    Falcioni, Massimo; Vulpiani, Angelo; Mantica, Giorgio; Pigolotti, Simone (2003-07-24)
    Article
    Open Access
    Discretization of phase space usually nullifies chaos in dynamical systems. We show that if randomness is associated with discretization dynamical chaos may survive and be indistinguishable from that of the original chaotic ...
  • Controllable light diffraction in woodpile photonic crystals filled with liquid crystal 

    Ho, Chih-Hua; Cheng, Yu Chieh; Maigyte, Lina; Zeng, H; Trull Silvestre, José Francisco; Cojocaru, Crina; Wiersma, D.S.; Staliunas, Kestutis (2015-01-12)
    Article
    Open Access
    An approach to switching between different patterns of light beams transmitted through the woodpile photonic crystals filled with liquid crystals is proposed. The phase transition between the nematic and isotropic liquid ...
  • Assessing the direction of climate interactions by means of complex networks and information theoretic tools 

    Deza, Juan Ignacio; Barreiro, Marcelo; Masoller Alonso, Cristina (Institute of Physics (IOP), 2015-03-01)
    Article
    Open Access
    An estimate of the net direction of climate interactions in different geographical regions is made by constructing a directed climate network from a regular latitude-longitude grid of nodes, using a directionality index ...
  • Stochasticity enhances the gaining of bet-hedging strategies in contact-process-like dynamics 

    Hidalgo, Juan J.; Pigolotti, Simone; Muñoz Martínez, Miguel Ángel (2015-03-10)
    Article
    Open Access
  • Enhanced transmission band in periodic media with loss modulation 

    Cebrecos, A.; Pico Vila, Rubén; Romero García, Vicenç; Yasser, A.M.; Maigyte, Lina; Herrero Simon, Ramon; Botey Cumella, Muriel; Sánchez Morcillo, Victor José; Staliunas, Kestutis (2014-11-17)
    Article
    Open Access
    We study the propagation of waves in a periodic array of absorbing layers. We report an anomalous increase of wave transmission through the structure related to a decrease of the absorption around the Bragg frequencies. ...
  • Inferring the connectivity of coupled oscillators from time-series statistical similarity analysis 

    Tirabassi, Giulio; Sevilla Escoboza, Ricardo; Martín Buldú, Javier; Masoller Alonso, Cristina (Macmillan Publishers, 2015-06-04)
    Article
    Open Access
    A system composed by interacting dynamical elements can be represented by a network, where the nodes represent the elements that constitute the system, and the links account for their interactions, which arise due to a ...
  • Far-field narrowing in spatially modulated broad-area edge-emitting semiconductor amplifiers 

    Radziunas, Mindaugas; Herrero Simon, Ramon; Botey Cumella, Muriel; Staliunas, Kestutis (2015-05-01)
    Article
    Open Access
    We perform a detailed theoretical analysis of the far-field narrowing in broad-area edge-emitting semiconductor amplifiers that are electrically injected through contacts periodically modulated in both longitudinal and ...
  • Coherent amplification of attosecond light pulses in the water-window spectral region 

    Serrat Jurado, Carles; Roca, David; Seres, Jozsef (2015-02-23)
    Article
    Open Access
    We present a theoretical study on coherent extreme ultraviolet (XUV) attosecond pulse amplification mediated by nonlinear parametric enhanced forward scattering occurring in the interaction of a strong femtosecond infrared ...
  • Organization and identification of solutions in the time-delayed Mackey-Glass model 

    Amil, Pablo; Cabeza, Cecilia; Masoller Alonso, Cristina; Marti, Arturo C (Institute of Physics (IOP), 2015-04-01)
    Article
    Open Access
    Multistability in the long term dynamics of the Mackey-Glass (MG) delayed model is analyzed by using an electronic circuit capable of controlling the initial conditions. The system's phase-space is explored by varying the ...

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