论文标题
集群平均场加密度矩阵重新归一化理论的Bose Hubbard模型
Cluster Mean Field plus Density Matrix Renormalization theory for the Bose Hubbard Model
论文作者
论文摘要
我们开发了一种新的方法来了解一维玻色模型的阶段。我们整合了平均场理论的简单性以及密度矩阵重新归一化组方法的数值能力，以使用中等计算资源来构建有效的数值技术，以确定大型一维系统的超流体订单参数和相关函数。我们证明了这种方法可以直接识别Bose-Hubbard模型中的超流体，Mott绝缘子和密度波相。
We develop a novel approach to understand the phases of one-dimensional Bose-Hubbard models. We integrate the simplicity of the mean-field theory and the numerical power of the density matrix renormalization group method to build an effective numerical technique with moderate computational resources to determine superfluid order parameters and correlation functions of large one-dimensional systems. We demonstrate the applicability of this method to directly identify superfluid, Mott insulator, and density wave phases in Bose-Hubbard models.
