Interacting Dirac Fermions on Honeycomb Lattice
Strongly Correlated Electrons
2010-12-07 v2
Abstract
We investigate the interacting Dirac fermions on honeycomb lattice by cluster dynamical mean-field theory (CDMFT) combined with continuous time quantum Monte Carlo simulation (CTQMC). A novel scenario for the semimetal-Mott insulator transition of the interacting Dirac fermions is found beyond the previous DMFT studies. We demonstrate that the non-local spatial correlations play a vital role in the Mott transition on the honeycomb lattice. We also elaborate the experimental protocol to observe this phase transition by the ultracold atoms on optical honeycomb lattice.
Cite
@article{arxiv.1005.2043,
title = {Interacting Dirac Fermions on Honeycomb Lattice},
author = {Wei Wu and Yao-Hua Chen and Hong-Shuai Tao and Ning-Hua Tong and Wu-Ming Liu},
journal= {arXiv preprint arXiv:1005.2043},
year = {2010}
}
Comments
4 pages, 6 figures