Lab result
100 teleportation channels at once
A team at East China Normal University used programmable holography to shape a laser beam into a 10×10 grid of 100 separately controllable light modes, then teleported all of them in parallel using shared entanglement and an all-optical feed-forward step. They teleported the whole 100-mode array and an image (reported as a letter "Q"), with an average fidelity of about 0.60 against a classical limit of 0.52, published in Physical Review Letters.
Why it matters for teleportation
- Shows teleportation can scale from one state at a time to many channels running side by side.
- Each channel can be addressed on its own, which suits future quantum networks that carry several signals.
- Caveat: 0.60 is only modestly above the 0.52 classical limit, and per-channel spread is not public; the 0.60/0.52 and "Q" details come from a secondary write-up, as the full paper is paywalled.