2009/02/28 by Marco Baiesi, Christian Maes, Bram Wynants · 1 citation
Physics and Astronomy · #cond-mat.stat-mech
paper · pdf · doi:10.1103/physrevlett.103.010602
published as Phys. Rev. Lett. 103, 010602 (2009)
arxiv created 2009/06/04 · arxiv updated 2009/12/01
A generalized fluctuation-response relation is found for thermal systems driven out of equilibrium. Its derivation is independent of many details of the dynamics, which is only required to be first-order. The result gives a correction to the equilibrium fluctuation-dissipation theorem, in terms of the correlation between observable and excess in dynamical activity caused by the perturbation. Previous approaches to this problem are recovered and extended in a unifying scheme.