Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2009-05-29
J. Phys. A Math. Theor. 42 (2009) 395004
Physics
Condensed Matter
Statistical Mechanics
Latex2e, 24 pages, with 9 figures included
Scientific paper
10.1088/1751-8113/42/39/395004
Ageing in systems without detailed balance is studied in bosonic contact and pair-contact processes with Levy diffusion. In the ageing regime, the dynamical scaling of the two-time correlation function and two-time response function is found and analysed. Exact results for non-equilibrium exponents and scaling functions are derived. The behaviour of the fluctuation-dissipation ratio is analysed. A passage time from the quasi-stationary regime to the ageing regime is defined, in qualitative agreement with kinetic spherical models and p-spin spherical glasses.
Durang Xavier
Henkel Malte
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