Function QCM::Lehmann_Green_function¶ Defined in File QCM.cpp Function Documentation¶ vector<pair<vector<double>, vector<double>>> QCM::Lehmann_Green_function(vector<vector3D<double>> &k, int orb, bool spin_down, int label)¶ Computes a Lehmann representation of the periodized Green function at given wavevectors. Parameters: spin_down – true if the spin-down sector is covered