| A Projection Method for Lattice Spin Systems (2007) | |||||||||||||
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| Recently, the projection method was proposed for computer simulation of dynamic and static properties of lattice spin systems. This talk describes the basic ideas, justification, practical implementation issues and some application of this approach. The strength of the method is demonstrated by measuring metastable lifetimes in kinetic Ising and Potts models in a region of external fields in which conventional simulations are not feasible. 1 Introduction The main purpose of the projection method is to overcome the disparate time scales governing local, microscopic dynamics and the global evolution of the system. The latter can be the metastable decay or motion of a driven domain wall. This is achieved by projecting the microscopic dynamics onto a simpler absorbing Markov chain which preserves su#cient information to calculate quantities of interest and is easier to analyze. The descriptors of this simplified system, namely the growth and shrinkage rates of the stable phase, are obtain... | |||||||||||||
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