Upc. Neves et Jrd. Defelicio, FINITE-SIZE-SCALING AND DAMAGE SPREADING IN ISING SYSTEMS WITH MULTISPIN INTERACTIONS, Physica. A, 258(1-2), 1998, pp. 211-220
We investigate two-dimensional Ising systems with multispin interactio
ns of three- (m = 3) and four-body terms (m = 4). The application of a
new type of finite-size algorithm of de Oliveira allow us to clearly
distinguish a first-order transition (in the m = 4 case) from a contin
uous one (in the m = 3 one). We also study the damage spreading in the
se systems. In this study, a dynamical phenomenon is observed to occur
at a critical point separating a chaotic phase from a frozen one. How
ever, the width of the interval where this transition happens does not
yield a conclusive evidence about the order of the phase transition.
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