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European Physicists Smash Chinese Teleportation Record

• http://www.technologyreview.com, kfc

Just a couple of weeks ago, we discussed a Chinese experiment in which physicists teleported photons over a distance of almost 100 kilometres. That's almost an order of magnitude more than previous records.

Today, European physicists say they've broken the record again, this time by teleporting photons between the two Canary Islands of La Palma and Tenerife off the Atlantic coast of north Africa, a distance of almost 150 kilometres.

That's sets the scene for a fascinating prize. Both teams say the next step is to teleport to an orbiting satellite and that the technology is ripe to make this happen.

The Canary islands experiment was no easy ride. In ordinary circumstances, the quantum information that photons carry cannot survive the battering it gets in passing through the atmosphere. It simply leaks away.

Indeed, the European team say that unusually bad weather including wind, rain, rapid temperature changes and even sand storms all badly affected the experiment. "These severe conditions delayed our experimental realizations of quantum teleportation for nearly one year," say Anton Zeilinger at the Institute for Quantum Optics and Quantum Information in Vienna and a few pals.  

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