Issue |
Europhys. Lett.
Volume 54, Number 5, June 2001
|
|
---|---|---|
Page(s) | 573 - 579 | |
Section | General | |
DOI | https://doi.org/10.1209/epl/i2001-00332-7 | |
Published online | 01 December 2003 |
Anomalous aging phenomena caused by drift velocities
1
Service de Physique Théorique,
CEA Saclay - 91191 Gif-sur-Yvette cedex, France
2
ICTP - Strada Costiera 11, 34100 Trieste, Italy,
and S. N. Bose National Centre for Basic Sciences, Block JD Sector 3
Salt Lake, Calcutta 700098, India
Corresponding authors: luck@spht.saclay.cea.fr anita@boson.bose.res.in
Received:
21
December
2000
Accepted:
26
March
2001
We demonstrate via several examples that a uniform drift velocity gives rise to anomalous aging, characterized by a specific form for the two-time correlation functions, in a variety of statistical-mechanical systems far from equilibrium. Our first example concerns the oscillatory phase observed recently in a model of competitive learning. Further examples, where the proposed theory is exact, include the voter model and the Ohta-Jasnow-Kawasaki theory for domain growth in any dimension, and a theory for the smoothing of sandpile surfaces.
PACS: 05.70.Ln – Nonequilibrium and irreversible thermodynamics
© EDP Sciences, 2001
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