Autocorrelation functions in phase-ordering kinetics from local scale-invariance

Abstract

The explicit calculation of the scaling form of the two-time autocorrelation function in phase-ordering kinetics and in those cases of non-equilibrium critical dynamics where the dynamical exponent z=2 through the extension of dynamical scaling to local scale-invariance is reviewed. Conceptually, this mainly requires an extension from the usually considered d-dimensional ageing or Schrödinger algebras to a new kind of representation of the conformal algebra in d+2 dimensions. Explicit tests in several exactly solved models of simple magnets and through simulations in the 2D Ising and q-states Potts models (q=2,3,8) quenched to T<T_c are presented and the extension to systems with non-equilibrium steady-states is discussed through two exactly solvable models as well. In the context of surface growth models, possible generalizations for a dynamical exponent z=4 and beyond are discussed.

Latex2e, 41 pages with 4 figures included, IOP macros

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Cited by in corpus (7)

• Phenomenology of ageing in the Kardar-Parisi-Zhang equation
• A Schrödinger approach to Newton-Cartan and Hořava-Lifshitz gravities
• Ageing in bosonic particle-reaction models with long-range transport
• Non-local representations of the ageing algebra in higher dimensions
• The non-equilibrium response of the critical Ising model: Universal scaling properties and Local Scale Invariance
• Dynamical response function of the disordered kinetic Ising model
• On non-local representations of the ageing algebra in $d\ge 1$ dimensions