Flavor-twisted boundary condition for simulations of quantum many-body systems
Strongly Correlated Electrons
2009-11-09 v1
Abstract
We present an approximative simulation method for quantum many-body systems based on coarse graining the space of the momentum transferred between interacting particles, which leads to effective Hamiltonians of reduced size with the flavor-twisted boundary condition. A rapid, accurate, and fast convergent computation of the ground-state energy is demonstrated on the spin-1/2 quantum antiferromagnet of any dimension by employing only two sites. The method is expected to be useful for future simulations and quick estimates on other strongly correlated systems.
Keywords
Cite
@article{arxiv.0910.1574,
title = {Flavor-twisted boundary condition for simulations of quantum many-body systems},
author = {Wei-Guo Yin and Wei Ku},
journal= {arXiv preprint arXiv:0910.1574},
year = {2009}
}
Comments
6 pages, 2 figures