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Absence of an Almeida-Thouless Line in Three-Dimensional Spin Glasses

2004; American Physical Society; Volume: 93; Issue: 20 Linguagem: Inglês

10.1103/physrevlett.93.207203

1092-0145

A. P. Young, Helmut G. Katzgraber,

Random Matrices and Applications

We present results of Monte Carlo simulations of the three-dimensional Edwards-Anderson Ising spin glass in the presence of a (random) field. A finite-size scaling analysis of the correlation length shows no indication of a transition, in contrast with the zero-field case. This suggests that there is no Almeida-Thouless line for short-range Ising spin glasses.