Nested Cluster Algorithm for Frustrated Quantum Antiferromagnets
Strongly Correlated Electrons
2008-11-26 v1 Soft Condensed Matter
High Energy Physics - Lattice
Abstract
Simulations of frustrated quantum antiferromagnets suffer from a severe sign problem. We solve the ergodicity problem of the loop-cluster algorithm in a natural way and apply a powerful strategy to address the sign problem. For the spin 1/2 Heisenberg antiferromagnet on a kagome and on a frustrated square lattice, a nested cluster algorithm eliminates the sign problem for large systems. The method is applicable to general lattice geometries but limited to moderate temperatures.
Keywords
Cite
@article{arxiv.0803.3538,
title = {Nested Cluster Algorithm for Frustrated Quantum Antiferromagnets},
author = {M. Nyfeler and F. -J. Jiang and F. Kämpfer and U. -J. Wiese},
journal= {arXiv preprint arXiv:0803.3538},
year = {2008}
}
Comments
4 pages, 4 figures