Physics – Condensed Matter – Disordered Systems and Neural Networks
Scientific paper
1997-02-05
Physics
Condensed Matter
Disordered Systems and Neural Networks
6 Pages including 5 figures, Revtex
Scientific paper
We study the four dimensional (4D) $\pm J$ Ising spin glass in a magnetic field by using the simulated tempering method recently introduced by Marinari and Parisi. We compute numerically the first four moments of the order parameter probability distribution $P(q)$. We find a finite cusp in the spin-glass susceptibility and strong tendency to paramagnetic ordering at low temperatures. Assuming a well defined transition we are able to bound its critical temperature.
Picco Marco
Ritort Felix
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