ProjectiveSymm-TB

This is a Mathematica code for constructing tight-binding model with any order of hoppings from projectively enriched space group symmetries. The code is acompanied with MagneticTB. The current notebook set an example to deal with P2 and Ci group, which have non-centered inversion symmetries in 2D and 3D. Version to deal with more sophisticated space groups with k-dependent symmetry representations is under development.