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One-dimensional nonequilibrium kinetic Ising models with local spin symmetry breaking: N-component branching
1Research Institute for Solid State Physics and Optics, P.O. Box 49, H-1525 Budapest, Hungary.
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|September 21, 2002
Abstract:
The effects of locally broken spin symmetry are investigated in one-dimensional nonequilibrium kinetic Ising systems via computer simulations and cluster-mean-field calculations. Besides a line of directed percolation transitions, a line of transitions belonging to N-component, two-offspring branching annihilating random-walk class (N-BARW2) is revealed in the phase diagram at zero branching rate. In this way a spin model for N-BARW2 transitions is proposed.