Off-Equilibrium Dynamics of a 4D Spin Glass with Asymmetric Couplings
arXiv:cond-mat/9712106 · doi:10.1088/0305-4470/31/22/007
Abstract
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+τ,t_w) scales as τ/t_w^β, with βa 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 βis always different from one, showing a non trivial aging scenario.
Latex, 12 pages, 9 figures
References in corpus (1)
Cited by in corpus (5)
- Correlations between synapses in pairs of neurons slow down dynamics in randomly connected neural networks
- Is dynamic ultrametricity observable in spin glasses?
- Unlearnable Games and "Satisficing'' Decisions: A Simple Model for a Complex World
- Dynamic ultrametricity in finite dimensional spin glasses
- Zero-temperature dynamics of the spherical model with non-reciprocal interactions