INIFTA   05425
INSTITUTO DE INVESTIGACIONES FISICO-QUIMICAS TEORICAS Y APLICADAS
Unidad Ejecutora - UE
artículos
Título:
Damage-spreading and out-of-equilibrium dynamics on the low-temperature regime of the two-dimensional $\pm J$ Edwards-Anderson model
Autor/es:
M. LETICIA RUBIO PUZZO; F. ROMÁ; S. BUSTINGORRY; P. M. GLEISER
Revista:
JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT
Editorial:
IOP PUBLISHING LTD
Referencias:
Lugar: Trieste; Año: 2010 p. 90171 - 901715
ISSN:
1742-5468
Resumen:
We present results showing the correlation between the out-of-equilibrium dynamics and the equilibrium damage-spreading process in the two-dimensional $pm J$ Edwards-Anderson model at low-temperatures. A key ingredient in our analysis is the projection of finite temperature spin configurations onto the ground state topology of the system. In particular, through numerical simulations we correlate ground state information with the out-of-equilibrium dynamics. We also analyse how the propagation of a small perturbation in equilibrated systems is related to the ground state topology. This damage-spreading study unveils the presence of rigid clusters of spins. We claim that these clusters give origin to the slow out-of-equilibrium dynamics observed in the temperature range between the glass temperature $T_g=0$ of the two-dimensional $pm J$ Edwards-Anderson model and the critical temperature $T_{mathrm{c}}$ of the pure ferromagnetic Ising model.