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Spin domains generate hierarchical ground state structure in J = +/-1 spin glasses
G Hed1, A K Hartmann, D Stauffer
1Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot, Israel.
Physical Review Letters
|April 6, 2001
Abstract:
Unbiased samples of ground states were generated for the short-range Ising spin glass with J(ij) = +/-1, in three dimensions. Clustering the ground states revealed their hierarchical structure, which is explained by correlated spin domains, serving as cores for macroscopic zero energy "excitations."