Aging processes in reversible reaction-diffusion systems

Details Aging processes in reversible reaction-diffusion systems Aging processes in reversible reaction-diffusion systems

2008-04-11

arxiv.org/abs/0804.1915v1

Phys. Rev. E 77, 051134 (2008)

Physics

Condensed Matter

Statistical Mechanics

12 pages, accepted for publication in Phys. Rev. E

Scientific paper

10.1103/PhysRevE.77.051134

Reversible reaction-diffusion systems display anomalous dynamics characterized by a power-law relaxation toward stationarity. In this paper we study in the aging regime the nonequilibrium dynamical properties of some model systems with reversible reactions. Starting from the exact Langevin equations describing these models, we derive expressions for two-time correlation and autoresponse functions and obtain a simple aging behavior for these quantities. The autoresponse function is thereby found to depend on the specific nature of the chosen perturbation of the system.

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