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Off-equilibrium dynamics of the frustrated Ising lattice gas Daniel A. Stariolo1,2,
 

Summary: Off-equilibrium dynamics of the frustrated Ising lattice gas
Daniel A. Stariolo1,2,
* and Jeferson J. Arenzon2,
1
Departamento de Fi´sica, Universidade Federal de Vic¸osa, 36570-000 Vic¸osa MG, Brazil
2
Instituto de Fi´sica, Universidade Federal do Rio Grande do Sul, Caixa Postal 15051, 91501-970 Porto Alegre RS, Brazil
Received 24 November 1998
We study by means of Monte Carlo simulations the off-equilibrium properties of a model glass, the frus-
trated Ising lattice gas in three dimensions. We have computed typical two times quantities, such as density-
density autocorrelations and the autocorrelation of internal degrees of freedom. We find an aging scenario
particularly interesting in the case of the density autocorrelations in real space that is very reminiscent of spin
glass phenomenology. While this model captures the essential features of structural glass dynamics, its analogy
with spin glasses may make possible its complete description using the tools developed in spin glass theory.
S1063-651X 99 51505-5
PACS number s : 64.70.Pf, 75.10.Nr, 05.50. q
Much effort is currently being devoted to reaching a rea-
sonable theoretical understanding of structural glass physics.
While the huge amount of experimental work available
shows an extremely rich phenomenology, a successful de-

  

Source: Arenzon, Jeferson J. - Instituto de Física, Universidade Federal do Rio Grande do Sul
Stariolo, Daniel Adrián - Instituto de Física, Universidade Federal do Rio Grande do Sul

 

Collections: Materials Science; Physics