I've looked everywhere in databases my school provides, to google searches, to the questions asked in physics forums, and here. As I understand, the original QT (quantum teleportation) protocol thought of by Bennett has been "realized" with polarization states of photons which is awesome proof. It validates QT because the entangled polarization state of light is a perfect analog. However, it hasn't been exactly realized because it seems to have not been done with spins! Has there really not been any papers on teleporting the spin state of a particle?