quantumteleportation
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Scientists shatter distance record for teleporting quantum data
Quantum teleportation, the act of reconstructing quantum data somewhere else, is impressive just by itself. However, scientists at the US' National Institute of Standards and Technology have managed to one-up that feat. They've broken the distance record for quantum teleportation by transferring the information from one photon to another across 63 miles of optical fiber. That may not sound like much, but it's an achievement just to beam that data in the first place -- 99 percent of photons would never make the complete trip. It was only possible thanks to newer detectors that could pick up the faint signal of the lone light particle.
Basics of quantum teleportation now fit on a single chip
Until now, quantum teleportation (that is, sending quantum data from one place to another) has required a room-filling machine. That's not going to usher in a brave new era of quantum computing, is it? However, a team of British and Japanese researchers has shrunk things down to a much more reasonable size. They've stuffed the core optical circuits for quantum teleportation into a single silicon chip that's just slightly longer than a penny -- in contrast, an experimental device from 2013 was nearly 14 feet long. While scientists built the chip using "state-of-the-art nano-fabrication," it should be more practical to make than its ancestors, which took months.
