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Escape from Metastability via Aging: Non-Equilibrium Dynamics in a One- Dimensional Ising Model

1994/08/19 by J. Kisker H. Rieger, M. Schreckenberg
Physics and Astronomy · #cond-mat #hep-lat

paper · pdf

published as J. Phys. A 27 (1994) L853 · RevTeX 11 pages + 9 figures (appended as uuencoded compressed tar-file), THP71-94

arxiv created 1994/08/19 · arxiv updated 2009/11/30

Abstract

The non-equilibrium dynamics of a one-dimensional Ising model with uniform, short-ranged three-spin interactions is investigated. It is shown that this model possesses an exponentially large number of metastable configurations that are stable against single spin flips. This glass-like situation results in a complete freezing of the system at low temperatures for times smaller than an intrinsic time-scale, which diverges exponentially with inverse temperature. Via thermal activation the system eventually escapes from this frozen state, which is signals the onset of aging by domain growth.

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