triqs.gf.backwd_compat.gf_legendre.GfLegendre.density

GfLegendre.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.