An international research team involving Paderborn University has achieved a crucial breakthrough on the road to a quantum internet: for the first time ever, the polarisation state of a single photon emitted from a quantum dot was successfully teleported to another, physically separated quantum dot. In simpler terms, this means that the properties of one photon can be transmitted to another via teleportation. This is a particularly vital step for future quantum communication networks. For example, the scientists used a 270m free-space optical link for their experiments. The results have now been published in the specialist journal Nature Communications.
To read more, click here