MULTIOVERLAP SIMULATIONS OF THE 3D EDWARDS-ANDERSON ISING SPIN GLASS
MULTIOVERLAP SIMULATIONS OF THE 3D EDWARDS-ANDERSON ISING SPIN GLASS
复制标题
3D 爱德华兹-安德森伊辛自旋玻璃的多重重叠模拟
DOI：
10.1103/physrevlett.80.4771
复制
发表时间：
1997
影响因子：
8.6
通讯作者：
W. Janke
中科院分区：
文献类型：
--
作者：
B. Berg;W. Janke
我们介绍了一种用于数值研究自旋玻璃的新方法：在固定温度下模拟两个复制品，加权以获得Parisi重叠参数Q(多重重叠)的广泛分布。通过研究3D Edwards-Anderson Ising(J{subik}={plus_-}1)自旋玻璃的破碎相({beta}=1)，证明了该方法的可行性。这使得获得关于自旋玻璃隧道势垒的可靠结果成为可能。此外，我们的结果还表明，正则Q分布不仅在冰点，而且在破碎相深处都具有非平凡的标度行为。{版权所有}{ital1998}{italthe American Physitive Society}
We introduce a novel method for numerical spin glass investigations: Simulations of two replica at fixed temperature, weighted to achieve a broad distribution of the Parisi overlap parameter q (multioverlap). We demonstrate the feasibility of the approach by studying the 3D Edwards-Anderson Ising (J{sub ik}={plus_minus}1) spin glass in the broken phase ({beta}=1). This makes it possible to obtain reliable results about spin glass tunneling barriers. In addition, our results indicate a nontrivial scaling behavior of the canonical q distributions not only at the freezing point but also deep in the broken phase. {copyright} {ital 1998} {ital The American Physical Society}