Entropic effects in the very low temperature regime of diluted ising spin glasses with discrete couplings (Articolo in rivista)

Type
Label
  • Entropic effects in the very low temperature regime of diluted ising spin glasses with discrete couplings (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevLett.100.177203 (literal)
Alternative label
  • Jorg, T; Ricci-Tersenghi, F (2008)
    Entropic effects in the very low temperature regime of diluted ising spin glasses with discrete couplings
    in Physical review letters (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Jorg, T; Ricci-Tersenghi, F (literal)
Pagina inizio
  • 177203 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 100 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 4 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • \"[Jorg, Thomas] Univ Paris 11, LPTMS, F-91405 Orsay, France; [Jorg, Thomas] Equipe TAO INRIA Futurs, F-91405 Orsay, France; [Ricci-Tersenghi, Federico] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy; [Ricci-Tersenghi, Federico] Univ Roma La Sapienza, INFM CNR, I-00185 Rome, Italy (literal)
Titolo
  • Entropic effects in the very low temperature regime of diluted ising spin glasses with discrete couplings (literal)
Abstract
  • We study link-diluted +/- J Ising spin glass models on the hierarchical lattice and on a three-dimensional lattice close to the percolation threshold. We show that previously computed zero temperature fixed points are unstable with respect to temperature perturbations and do not belong to any critical line in the dilution-temperature plane. We discuss implications of the presence of such spurious unstable fixed points on the use of optimization algorithms, and we show how entropic effects should be taken into account to obtain the right physical behavior and critical points. (literal)
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