triqs_ctint.post_process.G2_from_G2c

triqs_ctint.post_process.G2_from_G2c()

Dispatched C++ function(s).

[1] (G2_conn_iw: Block2Gf[MeshProduct[MeshImFreq, MeshImFreq, MeshImFreq], 4],
     G_iw: BlockGf[MeshImFreq, 2])
  -> Block2Gf[MeshProduct[MeshImFreq, MeshImFreq, MeshImFreq], 4]

Calculate the full two-particle Green’s function \(G^{(2)}\).

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

Parameters:

G2_conn_iwBlock2Gf[MeshProduct[MeshImFreq, MeshImFreq, MeshImFreq], 4]

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

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 \(G^{(2)}(i\omega)\).