EVIDENCE OF A CRITICAL TIME IN CONSTRAINED KINETIC ISING-MODELS

Authors
FOLLANA E RITORT F
Citation
E. Follana et F. Ritort, EVIDENCE OF A CRITICAL TIME IN CONSTRAINED KINETIC ISING-MODELS, Physical review. B, Condensed matter, 54(2), 1996, pp. 930-937
Citations number
30
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
54
Issue
2
Year of publication
1996
Pages
930 - 937
Database
ISI
SICI code
0163-1829(1996)54:2<930:EOACTI>2.0.ZU;2-8
Abstract
We study the relaxational dynamics of the one-spin facilitated Ising m odel introduced by Fredrickson and Andersen. We show the existence of a critical time which separates an initial regime in which the relaxat ion is exponentially fast and aging is absent from a regime in which r elaxation becomes slow and aging effects are present. The presence of this fast exponential process and its associated critical time is in a greement with some recent experimental results on fragile glasses.