Finite-size scaling and critical exponents in critical relaxation

We simulate the critical relaxation process of the two-dimensional Ising model with the initial state both completely disordered or completely ordered. Results of a method to measure both the dynamic and static critical exponents are reported, based on the finite-size scaling for the dynamics at the early time. From the time-dependent Binder cumulant, the dynamical exponent z is extracted independently, while the static exponents {β}/{ν} and {ν} are obtained from the time evolution of the magnetization and its higher moments. {} 1996 The American Physical Society.