English

Recent progress on cluster and meron algorithms for strongly correlated systems

High Energy Physics - Lattice 2021-06-29 v2

Abstract

Ab-initio studies of strongly interacting bosonic and fermionic systems is greatly facilitated by efficient Monte Carlo algorithms. This article emphasizes this requirement, and outlines the ideas behind the construction of the cluster algorithms and illustrates them via specific examples. Numerical studies of fermionic systems at finite densities and at real-times are sometimes hindered by the infamous sign problem, which is also discussed. The construction of meron cluster algorithms, which can solve certain sign problems are discussed. Cluster algorithms which can simulate certain pure Abelian gauge theories (realized as quantum link models) are also discussed.

Keywords

Cite

@article{arxiv.2101.03161,
  title  = {Recent progress on cluster and meron algorithms for strongly correlated systems},
  author = {Debasish Banerjee},
  journal= {arXiv preprint arXiv:2101.03161},
  year   = {2021}
}

Comments

Submitted to Indian Journal of Physics memorial issue for Pushan Majumdar. 20 pages, 6 figures. Matches the published version

R2 v1 2026-06-23T21:55:45.513Z