Log-Poisson statistics and full aging in glassy systems
Fysisk Institut, Syddansk Universitet - 5230 Odense M,
Accepted: 23 July 2003
We argue that Poisson statistics in logarithmic time provides an idealized description of non-equilibrium configurational rearrangements in aging glassy systems. The description puts stringent requirements on the geometry of the metastable attractors visited at age . Analytical implications for the residence time distributions as a function of and the correlation functions are derived. These are verified by extensive numerical studies of short-range Ising spin glasses.
PACS: 05.40.-a – Fluctuation phenomena, random processes, noise, and Brownian motion / 75.10.Nr – Spin-glass and other random models / 65.60.+a – Thermal properties of amorphous solids and glasses: heat capacity, thermal expansion, etc
© EDP Sciences, 2003