We propose a two-orbital Hubbard model on an emergent honeycomb lattice to describe the low-energy physics of twisted bilayer graphene. Our model provides a theoretical basis for studying metal-insulator transition, Landau level degeneracy lifting and unconventional superconductivity that are recently observed.
@article{arxiv.1803.09699,
title = {Model for Metal-Insulator Transition in Graphene Superlattices and Beyond},
author = {Noah F. Q. Yuan and Liang Fu},
journal= {arXiv preprint arXiv:1803.09699},
year = {2018}
}