Imaginary chemical potential quantum Monte Carlo for Hubbard molecules
Strongly Correlated Electrons
2009-11-10 v2
Abstract
We generalize the imaginary chemical potential quantum Monte Carlo (QMC) method proposed by Dagotto et al. [Phys. Rev. B 41, R811 (1990)] to systems without particle-hole symmetry. The generalized method is tested by comparing the results of the QMC simulations and exact diagonalization on small Hubbard molecules, such as tetrahedron and truncated tetrahedron. Results of the application of the method to the C Hubbard molecule are discussed.
Cite
@article{arxiv.cond-mat/0412641,
title = {Imaginary chemical potential quantum Monte Carlo for Hubbard molecules},
author = {Fei Lin and Jurij Smakov and Erik S. Sorensen and Catherine Kallin and A. John Berlinsky},
journal= {arXiv preprint arXiv:cond-mat/0412641},
year = {2009}
}
Comments
4 pages, 4 figures, RevTeX4