Function QCM::Berry_flux

• Defined in File QCM.cpp

Function Documentation

double QCM::Berry_flux(vector<vector3D<double>> &k, int orb, int label)

computes the Berry flux for model_instance label, through a contour specified by wavevectors k

Computes the Berry flux around a closed loop of wavevectors.

Parameters:

• k – array of wavevectors in the Brillouin zone ($\times\pi$)

• open – true if the path defined by k is “open” in the Brillouin zone.

• orb – lattice orbital label

• label – label of the model instance