Tempering simulations in the four dimensional +-J Ising spin glass in a magnetic field

Details Tempering simulations in the four dimensional +-J Ising spin glass in a magnetic field Tempering simulations in the four dimensional +-J Ising spin glass in a magnetic field

1997-02-05

arxiv.org/abs/cond-mat/9702041v1

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.

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