J. Phys. I France
Volume 5, Numéro 3, March 1995
Page(s) 355 - 364
DOI: 10.1051/jp1:1995106
J. Phys. I France 5 (1995) 355-364

Damage Spreading in $\pm J$ Asymmetric Ising Spin Glasses

R.M.C. de Almeida1, L. Bernadi2 and I.A. Campbell2

1  Instituto de Física, Universidade Federal do Rio Grande do Sul, C.P. 15051, 91500 Porto Alegre, RS, Brazil
2  Physique des Solides, Université Paris-Sud, 91405 Orsay, France

(Received 28 April 1994, revised 2 November 1994, accepted 28 November 1994)

Spin glasses in dimensions 2, 3, 4 and mean field are studied numerically as a function of the degree of asymmetry of the interactions between spins. Damage spreading data are used to assess the effects on the spin glass ordering of introducing asymmetry in the couplings. In all dimensions the critical temperature for damage spreading is rather insensitive to the asymmetry, but the spin glass ordering is strongly suppressed by any finite degree of asymmetry. We discuss the physical significance of the damage spreading parameter.

© Les Editions de Physique 1995

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