Observable-dependence of the effective temperature in off-equilibrium diatomic molecular liquids (Articolo in rivista)

Type
Label
  • Observable-dependence of the effective temperature in off-equilibrium diatomic molecular liquids (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.4901526 (literal)
Alternative label
  • Ninarello, Andrea Saverio; Gnan, Nicoletta; Sciortino, Francesco (2014)
    Observable-dependence of the effective temperature in off-equilibrium diatomic molecular liquids
    in The Journal of chemical physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Ninarello, Andrea Saverio; Gnan, Nicoletta; Sciortino, Francesco (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 141 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 7 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 19 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Sapienza University Rome; CNR ISC Uos Sapienza (literal)
Titolo
  • Observable-dependence of the effective temperature in off-equilibrium diatomic molecular liquids (literal)
Abstract
  • We discuss the observable-dependence of the effective temperature T-eff, defined via the fluctuation-dissipation relation, of an out-of-equilibrium system composed by homonuclear dumbbell molecules. T-eff is calculated by evaluating the fluctuation and the response for two observables associated, respectively, to translational and to rotational degrees of freedom, following a sudden temperature quench. We repeat our calculations for different dumbbell elongations zeta. At high elongations (zeta > 0.4), we find the same T-eff for the two observables. At low elongations (zeta <= 0.4), only for very deep quenches T-eff coincides. The observable-dependence of T-eff for low elongations and shallow quenches stresses the importance of a strong coupling between orientational and translational variables for a consistent definition of the effective temperature in glassy systems. (c) 2014 AIP Publishing LLC. (literal)
Prodotto di
Autore CNR

Incoming links:


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