Monte Carlo simulations of short-time critical dynamics with a conserved quantity - art. no. 066130

With Monte Carlo simulations, we investigate short-time critical dynamics o f the three-dimensional antiferromagnetic Ising model with a globally conse rved magnetization m(s) (not the order parameter). From the power law behav ior of the staggered magnetization (the order parameter), its second moment and the autocorrelation, we determine all static and dynamic critical expo nents as well as the critical temperature. The universality class of m(s) = 0 is the same as that without a conserved quantity, but the universality c lass of nonzero m(s) is different.