Jump Events in a 3D Edwards-Anderson Spin Glass
arXiv:1609.09860 · doi:10.1088/1742-5468/aa8c21
Abstract
The statistical properties of infrequent particle displacements, greater than a certain distance, is known as jump dynamics in the context of structural glass formers. We generalize the concept of jump to the case of a spin glass, by dividing the system in small boxes, and considering infrequent cooperative spin flips in each box. Jumps defined this way share similarities with jumps in structural glasses. We perform numerical simulations for the 3D Edwards-Anderson model, and study how the properties of these jumps depend on the waiting time after a quench. Similar to the results for structural glasses, we find that while jump frequency depends strongly on time, jump duration and jump length are roughly stationary. At odds with some results reported on studies of structural glass formers, at long enough times, the rest time between jumps varies as the inverse of jump frequency. We give a possible explanation for this discrepancy. We also find that our results are qualitatively reproduced by a fully-connected trap model.
9 pages, 11 figures, 2 tables
References in corpus (14)
- Theoretical perspective on the glass transition and amorphous materials
- Universality in three-dimensional Ising spin glasses: A Monte Carlo study
- An in-depth view of the microscopic dynamics of Ising spin glasses at fixed temperature
- Nonequilibrium spin glass dynamics from picoseconds to 0.1 seconds
- Particle jumps in structural glasses
- Intermittency, aging and record fluctuations
- Cage Size and Jump Precursors in Glass-Forming Liquids: Experiment and Simulations
- Evidence against a mean field description of short-range spin glasses revealed through thermal boundary conditions
- Testing statics-dynamics equivalence at the spin-glass transition in three dimensions
- Glass Phenomenology from the Connection to Spin Glasses
- Off-equilibrium finite-size method for critical behavior analyses
- Non-equilibrium evolution of window overlaps in spin glasses
- From particles to spins: Eulerian formulation of supercooled liquids and glasses
- glsim: A general library for numerical simulation