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cond-mat.dis-nn1998
Degeneracy Algorithm for Random Magnets
Sorin Bastea
It has been known for a long time that the ground state problem of random magnets, e.g. random field Ising model (RFIM), can be mapped onto the max-flow/min-cut problem of transpor…
cond-mat.dis-nn1998
Ground State Structure of Random Magnets
Sorin Bastea, Philip M. Duxbury
Using exact optimization methods, we find all of the ground states of +/- h random-field Ising magnets (RFIM) and of dilute antiferromagnets in a field (DAFF). The degenerate groun…