title: Spin domains generate hierarchical ground state structure in J = +/-1 spin glasses.
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."
authors: Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot, Israel.
authors: G
authors: G
authors: Hed
authors: A K
authors: AK
authors: Hartmann
authors: D
authors: D
authors: Stauffer
authors: E
authors: E
authors: Domany