Entanglement Swapping

In the quest to use quantum entanglement to send messages that are encrypted and light that is manipulated, scientists have discovered a way to use entanglement swapping to transmit the orbital angular momentum of photons farther distances.  

Plaquette Singlet

Scientists have now observed another quantum theory in action in the lab. Electrons' spins entangled into groups of four instead of pairs.  This is known as a 'plaquette singlet'.  Superconductor, many-body problems and Cooper pairing all play into this discovery.