triqs.gf.backwd_compat.gf_imfreq.GfImFreq.density

GfImFreq.density(*args, **kwargs)

Compute the density matrix of the Greens function

Parameters:

beta (float, optional) – Used for finite temperature density calculation with MeshReFreq.

Returns:

density_matrix – Single particle density matrix with shape target_shape.

Return type:

ndarray

Notes

Only works for single mesh Greens functions with a, Matsubara, real-frequency, or Legendre mesh.