triqs_ctint.post_process.F_from_G2c

triqs_ctint.post_process.F_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 vertex function \(F\).

Amputates the external legs of the connected two-particle Green’s function with the interacting Green’s function \(G\) to obtain the full vertex function \(F\).

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 vertex function \(F(i\omega)\).