Abstract
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 . 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 and can be approached directly. As examples we calculate spectra for the Ising model and for Heisenberg quantum spin ladders with two and four legs.
- Received 4 August 2000
DOI:https://doi.org/10.1103/PhysRevLett.86.5164
©2001 American Physical Society