Solution to sign problems in half-filled spin-polarized electronic systems
Strongly Correlated Electrons
2014-03-19 v1 High Energy Physics - Lattice
Nuclear Theory
Abstract
We solve the sign problem in a particle-hole symmetric spin-polarized fermion model on bipartite lattices using the idea of fermion bags. The solution can be extended to a class of models at half filling but without particle-hole symmetry. Attractive Hubbard models with an odd number of fermion species can also be solved. The new solutions should allow us to study quantum phase transitions that have remained unexplored so far due to sign problems.
Keywords
Cite
@article{arxiv.1311.0034,
title = {Solution to sign problems in half-filled spin-polarized electronic systems},
author = {Emilie Fulton Huffman and Shailesh Chandrasekharan},
journal= {arXiv preprint arXiv:1311.0034},
year = {2014}
}
Comments
5 pages, 2 figures