Benvenuti nell'Anagrafe della Ricerca d'Ateneo
La valutazione delle attività di ricerca che si svolgono nelle università ha assunto un'importanza rilevante sia per l'intero sistema universitario sia all'interno di ogni singolo ateneo. Roma Tre si è quindi dotata di idonei strumenti informativi in grado di supportare al meglio le azioni di monitoraggio e di valutazione delle attività di ricerca svolte nei propri dipartimentied ha realizzato una Anagrafe della Ricerca di Ateneo.
EnglishWe studied the single dimer dynamics in a lattice diffusive model as a function of particle density in the high densification regime. The mean square displacement is found to be subdiffusive both in one and two dimensions. The spatial dependence of the self-part of the van Hove correlation function displays as a function of r a single peak and signals a dramatic slow down of the system for high density. The self-intermediate scattering function is fitted to the Kohlrausch-Williams-Watts law. The exponent beta extracted from the fits is density independent while the relaxation time tau follows a scaling law with an exponent 2.5.
C. FUSCO, P. GALLO, A. PETRI, & ROVERE M (2002). Stretched exponential relaxation in a diffusive lattice model. PHYSICAL REVIEW E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS, 65(2), 026127 [10.1103/PhysRevE.65.026127].
| Titolo: | Stretched exponential relaxation in a diffusive lattice model | |
| Autori: | ||
| Data di pubblicazione: | 2002 | |
| Rivista: | ||
| Citazione: | C. FUSCO, P. GALLO, A. PETRI, & ROVERE M (2002). Stretched exponential relaxation in a diffusive lattice model. PHYSICAL REVIEW E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS, 65(2), 026127 [10.1103/PhysRevE.65.026127]. | |
| Abstract: | We studied the single dimer dynamics in a lattice diffusive model as a function of particle density in the high densification regime. The mean square displacement is found to be subdiffusive both in one and two dimensions. The spatial dependence of the self-part of the van Hove correlation function displays as a function of r a single peak and signals a dramatic slow down of the system for high density. The self-intermediate scattering function is fitted to the Kohlrausch-Williams-Watts law. The exponent beta extracted from the fits is density independent while the relaxation time tau follows a scaling law with an exponent 2.5. | |
| Handle: | http://hdl.handle.net/11590/114948 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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