Multioverlap Simulations of the 3D Edwards-Anderson Ising Spin Glass

摘要: We introduce a novel method for numerical spin glass investigations: Simulations of two replica at fixed temperature, weighted to achieve broad distribution the Parisi overlap parameter q (multioverlap). demonstrate feasibility approach by studying 3D Edwards-Anderson Ising (J{sub ik}={plus_minus}1) in broken phase ({beta}=1). This makes it possible obtain reliable results about tunneling barriers. In addition, our indicate nontrivial scaling behavior canonical distributions not only freezing point but also deep phase. {copyright} {ital 1998} The American Physical Society}