In this sense the transverse spin state of the photon does not exist.

There are 4 possible spin states for this system:

On the other hand, arbitrary motion among spin states may be unreasonable.

Furthermore, since photons have two spin states, the value of f is 2.

And withut that field, the spin states are pretty much degenerate.

At this point the unpaired electrons can move between their two spin states.

During a charge, the iron atom in the center of the octahedron has a high spin state.

Back to our example, the spin state of the particle is spin-1.

The 4f shells each can have two spin states, up or down.

But according to the Copenhagenians, the particles have no spin state at all until observed.