Efficient evaluation of partition functions of frustrated and inhomogeneous spin systems
arXiv:cond-mat/0501493 · doi:10.1103/PhysRevLett.95.057206
Abstract
We present a numerical method to evaluate partition functions and associated correlation functions of inhomogeneous 2--D classical spin systems and 1--D 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 1--D optical lattices, as realized in current experiments.
5 pages, 3 figures