triqs.gf.gf.Gf.density

Gf.density(*args, **kwargs)[source]

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.