Critical behavior of the three-dimensional Ising spin glass

The three-dimensional nearest-neighbor Ising spin-glass model with Gaussian bonds (〈J²〉=1) is studied numerically using the ``large-cell'' renormalization group. Estimates for the critical coupling and the thermal exponent are Kc=1/Tc=1.2±{}0.1 and yₜ=1/{ν}=0.30±{}0.05, respectively.