@article {646783, title = {Derivation of Wannier orbitals and minimal-basis tight-binding Hamiltonians for twisted bilayer graphene: First-principles approach}, journal = {Physical Review Research}, volume = {1}, number = {3}, year = {2019}, url = {https://journals.aps.org/prresearch/abstract/10.1103/PhysRevResearch.1.033072}, author = {Carr, Stephen and Fang, Shiang and Po, Hoi Chun and Ashvin Vishwanath and Efthimios Kaxiras} }