Hyper-Entangled Photons — 'Superdense' Coding Gets Denser

ScienceDaily is reporting that researchers at the University of Illinois have broken the record for most information sent via a single photon using the direction of "wiggling" and "twisting" a pair of entangled photons. "Using linear elements, however, the standard protocol is fundamentally limited to convey only one of three messages, or 1.58 bits. The new experiment surpasses that threshold by employing pairs of photons entangled in more ways than one (hyper-entangled). As a result, additional information can be sent and correctly decoded to achieve the full power of dense coding."

Comments

To Infinity and Beyond!

[headkase]

The Nobel prize frequency needs to be updated. Once a year used to be fine but now they could give out a prize once a week and still have deserving people go unnoticed. I suppose in another decade they could be giving it out every day. Singularity here we come!