triqs_ctint.post_process.G2pp_from_G2pp_conn

triqs_ctint.post_process.G2pp_from_G2pp_conn()

Dispatched C++ function(s).

[1] (G2pp_conn_iw: Block2Gf[MeshProduct[MeshImFreq, MeshImFreq, MeshImFreq], 4],
     G_iw: BlockGf[MeshImFreq, 2])
  -> Block2Gf[MeshProduct[MeshImFreq, MeshImFreq, MeshImFreq], 4]

Calculate the full \(G^{(2)}\) in the particle-particle channel.

Adds the disconnected contribution, built from the interacting Green’s function \(G\), to the connected two-particle Green’s function in the particle-particle channel.

Parameters:

G2pp_conn_iwBlock2Gf[MeshProduct[MeshImFreq, MeshImFreq, MeshImFreq], 4]

The connected two-particle Green’s function \(G^{(2)}_{pp,conn}(i\omega)\) in the particle-particle channel.

G_iwBlockGf[MeshImFreq, 2]

The interacting Green’s function \(G(i\omega)\).

Returns:

Block2Gf[MeshProduct[MeshImFreq, MeshImFreq, MeshImFreq], 4]

The full two-particle Green’s function \(G^{(2)}_{pp}(i\omega)\).