Cumulative overlap distribution function in realistic spin glasses
نویسندگان
چکیده
منابع مشابه
New extrapolation of overlap distribution in spin glasses
– We study in d = 3 dimensions the short-range Ising spin glass with Jij = ±1 couplings and periodic boundary conditions at T = 0. We show that the overlap distribution is non-trivial in the limit of large system size. Introduction. – There has been an upsurge of interest in the Edwards-Anderson model [1] of the short-range Ising spin glass with binary couplings,
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A novel method for numerical numerical spin glass investigations is described: Simulations of two replica at fixed temperature, weighted such that a broad distribution of the Parisi overlap parameter q is achieved. Canonical expectation values for the entire q-range (multi-overlap) follow by re-weighting and allow a calculation of spin glass tunneling barriers.
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We report large-scale simulations of the three-dimensional Edwards-Anderson Ising spin glass system using the recently introduced multi-overlap Monte Carlo algorithm. In this approach the temperature is fixed and two replica are coupled through a weight factor such that a broad distribution of the Parisi overlap parameter q is achieved. Canonical expectation values for the entire q-range (multi...
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We provide rigorous proofs which show that the main features of the Parisi solution of the Sherrington-Kirkpatrick spin glass are not valid for more realistic spin glass models in any dimension and at any temperature. The theoretical perspective provided by the Parisi solution [17] of the infinite-ranged Sherrington-Kirkpatrick (SK) model [21] has dominated the spin glass literature over the pa...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2014
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.90.094201