A Monte Carlo investigation of noise and diffusion of particles exhibiting asymmetric exclusion processes (Articolo in rivista)

Type
Label
  • A Monte Carlo investigation of noise and diffusion of particles exhibiting asymmetric exclusion processes (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Alternative label
  • Rosini, M; Reggiani, L (2007)
    A Monte Carlo investigation of noise and diffusion of particles exhibiting asymmetric exclusion processes
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Rosini, M; Reggiani, L (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 19 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Lecce, Dipartimento Ingn Innovaz, I-73100 Lecce, Italy; Natl Nanotechnol Lab, I-73100 Lecce, Italy (literal)
Titolo
  • A Monte Carlo investigation of noise and diffusion of particles exhibiting asymmetric exclusion processes (literal)
Abstract
  • The relation between noise and Fick's diffusion coefficient in barrier limited transport associated with hopping or tunnelling mechanisms of particles exhibiting the asymmetric simple exclusion processes (ASEP) is physically assessed by means of Monte Carlo simulations. For a closed ring consisting of a large number of barriers the diffusion coefficient is related explicitly to the current noise, thus revealing the existence of a generalized Nyquist-Einstein relation. Both diffusion and noise are confirmed to decrease as the square root of the number of barriers as a consequence of the correlation induced by ASEP. By contrast, for an open linear chain of barriers the diffusion coefficient is found to be no longer related to current noise. Here diffusion depends on particle concentration but is independent of the number of barriers. (literal)
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