Numéro
J. Phys. I France
Volume 4, Numéro 11, November 1994
Page(s) 1619 - 1625
DOI https://doi.org/10.1051/jp1:1994114
DOI: 10.1051/jp1:1994114
J. Phys. I France 4 (1994) 1619-1625

Numerical study of the Ising spin glass in a magnetic field

Marco Picco1 and Felix Ritort2

1  LPTHE, Université Pierre et Marie Curie, and Université Denis Diderot, Bte 126, 4 Place Jussieu, 75252 Paris Cedex 05, France
2  Dipartimento di Fisica and INFN, Università di Roma Tor Vergata, Viale della Ricerca Scientifica, 00173 Roma, Italy


(Received 4 May 1994, accepted in final form 28 July 1994)

Abstract
We study the order parameter distribution P(q) in the 4d Ising spin glass with $\pm J$ couplings in a magnetic field. We also compare these results with simulations for the infinite ranged model (i.e. SK model.) Then we analyse our numerical results in the framework of the droplet picture as well as in the mean field approach.



© Les Editions de Physique 1994

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