Short-time critical dynamics

Details Short-time critical dynamics Short-time critical dynamics

2000-07-05

arxiv.org/abs/hep-lat/0007003v1

Physics

High Energy Physics

High Energy Physics - Lattice

Proceedings of the International Workshop on Nonperturbative Methods and Lattice QCD, Guangzhou

Scientific paper

An introductory review to short-time critical dynamics is given. From the scaling relation valid already in the early stage of the evolution of a system at or near the critical point, one derives power law behaviour for various quantities. By a numerical simulation of the system one can measure the critical exponents and, by searching for the best power law behaviour, one can determine the critical point. Critical slowing down as well as finite size corrections are nearly absent, since the correlation length is still small for times far before equilibrium is reached. By measuring the (pseudo) critical points it is also possible to distinguish (weak) first-order from second-order phase transitions.

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