triqs.operators.util.observables

Operators for commonly used observables.

Functions

L2_op(spin_names, n_orb[, off_diag, ...])

Create the square of the orbital angular-momentum operator.

LS_op(spin_names, n_orb[, off_diag, ...])

Create the spin-orbital coupling operator.

L_op(component, spin_names, n_orb[, ...])

Create a component of the orbital angular-momentum vector operator.

N_op(spin_names, n_orb[, off_diag, ...])

Create the total particle-number operator.

S2_op(spin_names, n_orb[, off_diag, ...])

Create the square of the total spin operator.

S_op(component, spin_names, n_orb[, ...])

Create a component of the spin vector operator.

check_backward_compat(fname, n_orb, orb_names)

Validate and normalize the orbital count for backward compatibility.