triqs.operators.util.U_matrix.U_J_to_radial_integrals

triqs.operators.util.U_matrix.U_J_to_radial_integrals(l, U_int, J_hund)

Compute the radial Slater integrals \(F_k\) from U_int and J_hund.

Parameters:

lint

Angular momentum of the shell being treated (l=2 for a d shell, l=3 for an f shell).

U_intfloat

Value of the screened Hubbard interaction.

J_hundfloat

Value of the Hund’s coupling.

Returns:

list of float

Slater integrals [F0, F2, F4, ...].