Physics – Condensed Matter – Disordered Systems and Neural Networks
Scientific paper
1997-12-10
Physics
Condensed Matter
Disordered Systems and Neural Networks
Latex, 12 pages, 9 figures
Scientific paper
10.1088/0305-4470/31/22/007
We study the off-equilibrium dynamics of the Edwards-Anderson spin glass in four dimensions under the influence of a non-hamiltonian perturbation. We find that for small asymmetry the model behaves as the hamiltonian one, while for large asymmetry the behaviour of the model can be well described by an interrupted aging scenario. The autocorrelation function C(t_w+\tau,t_w) scales as \tau/t_w^\beta, with \beta a function of the asymmetry. For very long waiting times the previous regime crosses over to a time translational invariant regime (TTI) with stretched exponential relaxation. The model does not show signs of reaching a TTI regime for weak asymmetry, but in the aging regime the exponent \beta is always different from one, showing a non trivial aging scenario.
Marinari Enzo
Stariolo Daniel A.
No associations
LandOfFree
Off-Equilibrium Dynamics of a 4D Spin Glass with Asymmetric Couplings does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Off-Equilibrium Dynamics of a 4D Spin Glass with Asymmetric Couplings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Off-Equilibrium Dynamics of a 4D Spin Glass with Asymmetric Couplings will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-437299