Function QCM::projected_Green_function

Function Documentation

matrix<complex<double>> QCM::projected_Green_function(const complex<double> w, bool spin_down, int label)

returns the projected Green function, as used in CDMFT: \bar G = \sum_\kv (G_0^{-1}(\kv,\omega) - \Sigma(\omega))^{-1}

Computes the projected Green function at a given frequency, as used in CDMFT.

Parameters:
  • w – frequency

  • spin_down – true if the spin-down sector is covered (mixing = 4)