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Research team claims to have accurately ‘teleported’ quantum information ten feet

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Phys.org has the story on the latest research in teleportation.

A team of researchers at Delft University in the Netherlands is reporting in a paper they have had published in the journal Science, that they have successfully used entanglement as a means of communication, over a distance of ten feet (three meters). Furthermore, they note, they did so with 100 percent reliability and without altering the spin state of the quantum bits (qubits) involved.

Teleportation, is of course, a means of moving an object from one place to another without it having to travel between them. Thus far examples of it have only been seen in science fiction movies. The idea of moving information in similar fashion, however, has met with some, albeit limited success. The idea is to use the concept of entanglement of particles as a means of conveyance. It’s supposed to work because of the strange interconnectedness of the two particles—whatever happens to one, automatically happens to the other, regardless of the distance between them. Such a property should allow then, for the exchange of information. If the spin state of one qubit is altered, then it should be automatically altered in the other qubit—a form of information exchange which can be counted as a message of sorts if a string of such transactions can be carried out.

To date, scientists have struggled to use entanglement as a means of communication—it’s been achieved but the error rate has been so great that it would be unfeasible as a real-world application. In this new effort, the researchers claim to have solved the error rate problem—they’ve brought it down to zero percent. They did it, they report, by trapping electrons in diamonds at very low temperatures and shooting them with lasers, resulting in the creation of qubits. The diamonds, the team reports, serve as really tiny prisons, holding the electrons in place. Held as they were, the researchers were able to cause a spin state to exist and then to read it at both locations, which meant that information had been conveyed.

Read more.



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1 Comment

  1. Hi, 2 days ago made ​​a publication of the metric system (http://www.adafruit.com/blog/2014/05/30/its-time-for-the-us-to-use-the-metric-system/), in which they talked about it was time to start using the International System of Units in the USA.

    Would be good to start applying what you publish (or republican), ie change the title of your publication for "3 meters (10 feet)."

    The imperial system of measurement has no place in engineering, much less scientific issues.

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