From anomalous energy diffusion to levy walks and heat conductivity in one-dimensional systems (Articolo in rivista)

Type
Label
  • From anomalous energy diffusion to levy walks and heat conductivity in one-dimensional systems (Articolo in rivista) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Alternative label
  • Cipriani P., Denisov S., Politi A. (2005)
    From anomalous energy diffusion to levy walks and heat conductivity in one-dimensional systems
    in Physical review letters (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Cipriani P., Denisov S., Politi A. (literal)
Pagina inizio
  • 244301 (literal)
Pagina fine
  • [4] (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 94 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • fasc. (24). American Physical Society (APS). (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1) Istituto Nazionale di Ottica Applicata, Nöthnitzer Strasse 38, D-01187 Dresden, Germany 2) Max-Planck Institut für Physik Komplexer Systeme, Nöthnitzer Strasse 38, D-01187 Dresden, Germany * On leave from Istituto dei Sistemi Complessi–Sezione di Frenze, CNR Largo E. Fermi 6, Firenze, I-50125 Italy (literal)
Titolo
  • From anomalous energy diffusion to levy walks and heat conductivity in one-dimensional systems (literal)
Abstract
  • The evolution of infinitesimal, localized perturbations is investigated in a one-dimensional diatomic gas of hard-point particles (HPG) and thereby connected to energy diffusion. As a result, a Levy walk description, which was so far invoked to explain anomalous heat conductivity in the context of noninteracting particles is here shown to extend to the general case of truly many-body systems. Our approach does not only provide firm evidence that energy diffusion is anomalous in the HPG, but proves definitely superior to direct methods for estimating the divergence rate of heat conductivity which turns out to be 0.333±0.004, in perfect agreement with the dynamical renormalization-group prediction (1/3). (literal)
Prodotto di
Autore CNR
Insieme di parole chiave

Incoming links:


Autore CNR di
Prodotto
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
Insieme di parole chiave di
data.CNR.it