2000/08/31 by H. G. Evertz, Hans Gerd Evertz, Wolfgang von der Linden +1
Physics and Astronomy · #Theoretical and Computational Physics #cond-mat.stat-mech #cond-mat.str-el
paper · pdf · doi:10.1103/physrevlett.86.5164
published as Phys. Rev. Lett. 86, 5164 (2001) · 4 pages, 6 figures. Minor modifications
arxiv created 2001/04/05 · openalex publication_date 2001/05/28 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We introduce a Monte Carlo method, as a modification of existing cluster algorithms, which allows simulations directly on systems of infinite size, and for quantum models also at \ensuremathβ\phantom\rule0ex0ex=\phantom\rule0ex0ex\ensuremath∞. All two-point functions can be obtained, including dynamical information. When the number of iterations is increased, correlation functions at larger distances become available. Limits q\ensuremath→0 and \ensuremathω\ensuremath→0 can be approached directly. As examples we calculate spectra for the d\phantom\rule0ex0ex=\phantom\rule0ex0ex2 Ising model and for Heisenberg quantum spin ladders with two and four legs.