Role of quenching on superdiffusive transport in 2D random media (Articolo in rivista)

Type
Label
  • Role of quenching on superdiffusive transport in 2D random media (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevE.82.011101 (literal)
Alternative label
  • Barthelemy P. (1); Bertolotti J. (1); Vynck K. (1); Lepri S. (2); Wiersma D.S. (1); (2010)
    Role of quenching on superdiffusive transport in 2D random media
    in Physical review. E, Statistical, nonlinear, and soft matter physics (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Barthelemy P. (1); Bertolotti J. (1); Vynck K. (1); Lepri S. (2); Wiersma D.S. (1); (literal)
Pagina inizio
  • 011101 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 82 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • American Physical Society. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 8 (literal)
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  • 1 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1) LENS and CNR-INO, via Nello Carrara 1, 50019 Sesto Fiorentino, Florence, Italy; 2) Istituto dei Sistemi Complessi, CNR, via Madonna del Piano 10, 50019 Sesto Fiorentino, Florence, Italy; (literal)
Titolo
  • Role of quenching on superdiffusive transport in 2D random media (literal)
Abstract
  • Transport in random media is known to be affected by quenched disorder. From the point of view of random walks, quenching induces correlations between steps that may alter the dynamical properties of the medium. This paper is intended to provide more insight into the role of quenched disorder on superdiffusive transport in two-dimensional random media. The systems under consideration are disordered materials called Lévy glasses that exhibit large spatial fluctuations in the density of scattering elements. We show that in an ideal Lévy glass the influence of quenching can be neglected, in the sense that transport follows to very good approximation that of a standard Lévy walk. We also show that, by changing sample parameters, quenching effects can be increased intentionally, thereby making it possible to investigate systematically diverse regimes of transport. In particular, we find that strong quenching induces local trapping effects which slow down superdiffusion and lead to a transient subdiffusivelike transport regime close to the truncation time of the system. (literal)
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