Physics – Condensed Matter – Disordered Systems and Neural Networks
Scientific paper
2007-08-05
Physical Review B 77, 092415 (2008)
Physics
Condensed Matter
Disordered Systems and Neural Networks
4 pages, 4 figures; reference correction
Scientific paper
10.1103/PhysRevB.77.092415
Slow dynamics in disordered materials prohibits direct simulation of their rich nonequilibrium behavior at large scales. "Patchwork dynamics" is introduced to mimic relaxation over a very broad range of time scales by equilibrating or optimizing directly on successive length scales. This dynamics is used to study coarsening and to replicate memory effects for spin glasses and random ferromagnets. It is also used to find, with high confidence, exact ground states in large or toroidal samples.
Middleton Alan A.
Thomas Creighton K.
White Olivia L.
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