98% teleportation inside molecules

Chemists at Northwestern University designed a three-part molecule in which light triggers charge (hole) transfers that act as the entangling and measuring steps of teleportation. An electron-spin state prepared on one end of the molecule was transferred to the other end with 98% average fidelity, up from 89% in their earlier molecular system. Results were checked with pulsed electron paramagnetic resonance, published in Nature Communications.

Why it matters for teleportation

• Shows chemistry can be designed to move quantum information across nanometre distances.
• Points to molecular 'wires' that could link tiny quantum devices.
• Limitation: measured on a frozen ensemble of molecules at 85 K, over a single molecule's length, so it is far from a practical network link.