Code for Fukui-Hatsugai-Suzuki's method of Chern number calculation in Kitaev-Hubbard model for U=0 case.
ref:
- Kitaev-Hubbard Model : https://arxiv.org/abs/1506.00501
- Fukui-Hatsugai-Suzuki's Method : https://arxiv.org/abs/cond-mat/0503172
Add LAPACK flags during compilation e.g. 'gfortran <file_name>.f90 -o <output_name> -lapack -lblas'