Murg V, Verstraete F, Cirac J I
Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, Garching, D-85748, Germany.
Phys Rev Lett. 2005 Jul 29;95(5):057206. doi: 10.1103/PhysRevLett.95.057206. Epub 2005 Jul 28.
We present a numerical method to evaluate partition functions and associated correlation functions of inhomogeneous 2D classical spin systems and 1D quantum spin systems. The method is scalable and has a controlled error. We illustrate the algorithm by calculating the finite-temperature properties of bosonic particles in 1D optical lattices, as realized in current experiments.
我们提出了一种数值方法，用于评估非均匀二维经典自旋系统和一维量子自旋系统的配分函数及相关关联函数。该方法具有可扩展性且误差可控。我们通过计算一维光学晶格中玻色子粒子的有限温度性质（如当前实验所实现的）来说明该算法。
