Exact continuum model for low-energy electronic states of twisted bilayer graphene

Twisted bilayer graphene has been the focus of many research efforts since the discovery of its superconducting phase. However, due to its size and large-scale atomic reconstruction, obtaining an accurate electronic model is computationally demanding. In this work, first-principles calculations are connected to an updated continuum model, allowing for thorough analysis of how band structure in real devices depends on the twisting angle. The model is made publicly available, providing a reliable foundation for ongoing studies of correlated phases.