Physics – Condensed Matter – Disordered Systems and Neural Networks
Scientific paper
2002-03-08
Physics
Condensed Matter
Disordered Systems and Neural Networks
4 pages, 4 figures
Scientific paper
10.1088/0305-4470/35/19/101
We present exact results for the critical behavior of the RFIM on complete graphs and trees, both at equilibrium and away from equilibrium, i.e., models for hysteresis and Barkhausen noise. We show that for stretched exponential and power law distributions of random fields the behavior on complete graphs is non-universal, while the behavior on Cayley trees is universal even in the limit of large co-ordination.
Dobrin R.
Duxbury Philip M.
Meinke Jan H.
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