Numerical Zero-Temperature Results for the 3d Edwards-Anderson Ising Spin Glass
A study of the zero temperature properties of the 3d Edwards-Anderson Ising spin glass, by means of multicanonical simulations is reported. Finite size scaling fits of the data are carried out for two hypothetical scenarios: Parisi mean field theory versus a droplet scaling ansatz. With a zero temperature scaling exponent y = 0.72 ±0.12 the data are well described by the droplet scaling ansatz. Alternatively, a description in terms of the Parisi mean field behavior is still possible. The two scenarios give significantly different predictions on lattices of size ≥ 123.
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