Now showing items 40-47 of 47

  • The rich phenomenology of brownian particles in nonlinear potential landscapes 

    Sancho, Jose Maria; Lacasta Palacio, Ana María (2010-09)
    Article
    Open Access
    Abstract. Non-interacting brownian particles follows Langevin equations fullfiling fluctuation–dissipation relation between friction and thermal noise. Under a linear potential (constant force) Einstein found a relation ...
  • Towards gender equity in Spanish universities: a long and unpaved road 

    Sancho, Jose Maria; Creus, A. S.; Hemosilla, P. (Global University Network for Innovation (GUNI), 2008)
    Article
    Open Access
  • Transport and diffusion on a body-centered-cubic bcc(110) surface under a constant external force 

    Lindenberg, Katja; Lacasta Palacio, Ana María; Sancho, Jose Maria; Romero, Aldo H. (SPIE--The International Society for Optical Engineering, 2005-08-31)
    Conference lecture
    Restricted access - publisher's policy
    We present a numerical study of classical particles obeying a Langevin equation moving on a solid bcc(110) surface. The particles are subject to a two dimensional periodic and symmetric potential of rectangular symmetry ...
  • Transport and diffusion on crystalline surfaces under external forces 

    Lindenberg, Katja; Lacasta Palacio, Ana María; Sancho, Jose Maria; Romero, A. H. (IOP Publishing, 2005-01-31)
    Article
    Open Access
    We present a numerical study of classical particles obeying a Langevin equation and moving on a solid crystalline surface under an external force that may either be constant or modulated by periodic oscillations. We focus ...
  • Wave competition in excitable modulated media 

    Sendiña-Nadal, I.; Gómez Gesteira, Moncho; Pérez Muñuzuri, Vicente; Pérez Villar, Vicente; Armero, J.; Ramírez de la Piscina Millán, Laureano; Casademunt, Jaume; Sancho, Jose Maria; Sagués Mestre, Francesc (American Physical Society, 1997-12-31)
    Article
    Open Access
    The propagation of an initially planar front is studied within the framework of the photosensitive Belousov- Zhabotinsky reaction modulated by a smooth spatial variation of the local front velocity in the direction perpendicular ...
  • Wave propagation in a medium with disordered excitability 

    Sendiña-Nadal, I.; Pérez Muñuzuri, Alberto; Vives, D.; Pérez Muñuzuri, Vicente; Casademunt, Jaume; Ramírez de la Piscina Millán, Laureano; Sancho, Jose Maria; Sagués Mestre, Francesc (American Physical Society, 1998-06-30)
    Article
    Open Access
    The effect of quenched disorder on the propagation of autowaves in excitable media is studied both experimentally and numerically in relation to the light-sensitive Belousov-Zhabotinsky reaction. The spatial disorder is ...
  • Weak disorder in periodic potentials: anomalous transport and diffusion 

    Lindenberg, Katja; Sancho, Jose Maria; Khoury Arvelo, María José; Lacasta Palacio, Ana María (2012-03-31)
    Article
    Restricted access - publisher's policy
    Particles driven through a periodic potential by an external constant force are known to exhibit a pronounced peak of the diffusion around the critical deterministic force that defines the transition between locked and ...
  • Weak Disorder: Anomalous Transport and Diffusion Are Normal Yet Again 

    Khoury Arvelo, María José; Lacasta Palacio, Ana María; Sancho, Jose Maria; Lindenberg, Katja (2011-03)
    Article
    Open Access
    We carry out a detailed study of the motion of particles driven by a constant external force over a landscape consisting of a periodic potential corrugated by a small amount of spatial disorder. We observe anomalous ...