A fluctuation relation for weakly ergodic aging systems
arXiv:1301.5461 · doi:10.1103/PhysRevLett.110.080601
Abstract
A fluctuation relation for aging systems is introduced, and verified by extensive numerical simulations. It is based on the hypothesis of partial equilibration over phase space regions in a scenario of entropy-driven relaxation. The relation provides a simple alternative method, amenable of experimental implementation, to measure replica symmetry breaking parameters in aging systems. The connection with the effective temperatures obtained from the fluctuation-dissipation theorem is discussed.
5 pages, 3 figures, Phys Rev Lett (in press)