Dinámica de saltos en un modelo de Edwards-Anderson 3D

MÁRTIN DANIEL ALEJANDRO; IGUAIN JOSE LUIS

La Pampa

Congreso; Trefemac 2017; 2017

UNLaPam

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 Edwards-Anderson 3D 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 theinverse of jump frequency. We give a possible explanation for this discrepancy.