Record-breaking distance for quantum teleportation 8th September 2012 Scientists have achieved quantum teleportation over a record-breaking distance of 143 kilometres (89 miles) through free space.
This is 50% further than a similar experiment by the University of Science and Technology in China which we reported in May. This latest project was led by researchers from Vienna’s Institute for Quantum Optics and Quantum Information, and relied on algorithms and equipment developed at the University of Waterloo in Canada. Quantum information — the state of photons (light particles) — was teleported between the Canary Islands of Tenerife and La Palma, measured with ultra-precise clocks aligned to within a billionth of a second. Teleportation across 143 km is a crucial milestone in this field of research, since it is roughly the minimum distance between ground level and orbiting satellites. It could lead to satellite-based quantum communication networks with 100% secure transfer of data. Indeed, Professor Vadim Makarov, who designed the highly sensitive photon detectors, says the next logical step is to attempt teleportation between the Earth and a satellite. The team's results were published this week in Nature.
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