Scaling of stiffness energy for 3d +/-J Ising spin glasses

Details Scaling of stiffness energy for 3d +/-J Ising spin glasses Scaling of stiffness energy for 3d +/-J Ising spin glasses

1998-06-09

arxiv.org/abs/cond-mat/9806114v1

Phys. Rev. E 59, 84 (1999)

Physics

Condensed Matter

Disordered Systems and Neural Networks

4 pages, 4 figures

Scientific paper

10.1103/PhysRevE.59.84

Large numbers of ground states of 3d EA Ising spin glasses are calculated for sizes up to 10^3 using a combination of a genetic algorithm and Cluster-Exact Approximation. A detailed analysis shows that true ground states are obtained. The ground state stiffness (or domain wall) energy D is calculated. A D ~ L^t behavior with t=0.19(2) is found which strongly indicates that the 3d model has an equilibrium spin-glass-paramagnet transition for non-zero T_c.

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