Articles in peer-reviewed journals
|Local scale-invariance in ageing phenomena|
|Adv. Solid State. Phys. 44 (2004) 389|
|ArXiv : cond-mat/0404016 [PDF]|
Many materials quenched into their ordered phase undergo ageing and there show dynamical scaling. For any given dynamical exponent z, this can be extended to a new form of local scale-invariance which acts as a dynamical symmetry. The scaling functions of the two-time correlation and response functions of ferromagnets with a non-conserved order parameter are determined. These results are in agreement with analytical and numerical studies of various models, especially the kinetic Glauber-Ising model in 2 and 3 dimensions.