Spin glasses: model systems for non-equilibrium dynamics

Spin Glasses: Model systems for non-equilibrium dynamics

Spin glasses are frustrated magnetic systems due to a random distribution of ferroand antiferromagnetic interactions. An experimental three dimensional (3d) spin glass exhibits a second order phase transition to a low temperature spin glass phase regardless of the spin dimensionality. In addition, the low temperature phase of Ising and Heisenberg spin glasses exhibits similar non-equilibrium dy...

Non-equilibrium dynamics in the random bond Ising chain: A reminiscence of aging in spin glasses

Results of extensive Monte-Carlo simulations that investigate the out-ofequilibrium dynamics of the one-dimensional Ising spin glass model with a Gaussian bond-distribution are presented. At low enough temperatures a typical (interrupted) aging scenario is established as in twoand similar to three-dimensional spin glass models. Since the underlying mechanism is a slow domain-growth we study in ...

Equilibrium dynamics of continuous unbounded spin systems

Spin glasses and fragile glasses: statics, dynamics, and complexity.

In this paper I will briefly review some theoretical results that have been obtained in recent years for spin glasses and fragile glasses. I will concentrate my attention on the predictions coming from the so called broken replica symmetry approach and on their experimental verifications. I will also mention the relevance or these results for other fields, and in general for complex systems.

Non Equilibrium Dynamics in Strongly Correlated Systems