Stories
Slash Boxes
Comments

SoylentNews is people

SoylentNews is powered by your submissions, so send in your scoop. Only 17 submissions in the queue.
posted by martyb on Wednesday September 21 2016, @08:52PM   Printer-friendly
from the spooky! dept.

Two teams have separately achieved quantum teleportation over existing fiber networks:

[...] set-ups described in studies published in Nature Photonics journal could be seen as building blocks for a future "quantum internet". In one of the papers [DOI: 10.1038/nphoton.2016.180] [DX], Dr Wolfgang Tittel and colleagues describe how they teleported the quantum state of a photon, or light particle, over 8.2km in the Canadian city of Calgary.

The process by which information - the quantum state of a photon - is teleported involves creating two photons at the University of Calgary (site B in the aerial photo). One of these photons is sent in a "classical" way along 11.1km of optical fibre to a building near Calgary City Hall (C in the photo), while the other remains behind at the university. Meanwhile, a photon is also sent to the City Hall site from site A (located in the neighbourhood of Manchester). This all results in the quantum state of the photon from site A being transferred to the photon which remained behind at the university (B) through quantum teleportation.

[...] In the other Nature Photonics study [DOI: 10.1038/nphoton.2016.179] [DX], Qiang Zhang and Jian-Wei Pan from the University of Science and Technology of China, Shanghai, used a different set-up to achieve teleportation over a 30km optical fibre network in the Chinese city of Hefei.

In 2012, Anton Zeilinger of the University of Vienna carried out quantum teleportation over 143km of free space between different Canary Islands. But Dr Tittel says his study uses a configuration that could serve as the benchmark for useful city-based quantum networks. Both studies demonstrate that teleportation works over several kilometres of the optical fibre used in metropolitan areas.


Original Submission

 
This discussion has been archived. No new comments can be posted.
Display Options Threshold/Breakthrough Mark All as Read Mark All as Unread
The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way.
  • (Score: 5, Interesting) by TrumpetPower! on Wednesday September 21 2016, @11:04PM

    by TrumpetPower! (590) <ben@trumpetpower.com> on Wednesday September 21 2016, @11:04PM (#404946) Homepage

    Physicists seem to have a real hit-or-miss record when it comes to naming the stuff they discover. "Relativity" is the perfect term for that theory, and the naming of the quarks is strangely charming, beautiful in its own way.

    But the Big Bang was neither Big nor Bangy; the God Particle is anything but divine, and Quantum Teleportation has nothing to do with teleporters.

    Yes, yes; LeMaitre called it the Primordial Atom, which isn't such a bad term, and the Higgs was the Goddamn Particle before it got sanitized.

    But the phenomenon under discussion here would better be described as a Submicroscopic Fax Shredder than a Quantum Teleporter, since teleportation implies magically moving something instantly across time and space. Still way cool, of course, but Scotty ain't gonna beam anything up, ever, with one of these.

    Cheers,

    b&

    --
    All but God can prove this sentence true.
    Starting Score:    1  point
    Moderation   +3  
       Interesting=3, Total=3
    Extra 'Interesting' Modifier   0  
    Karma-Bonus Modifier   +1  

    Total Score:   5  
  • (Score: 1, Funny) by Anonymous Coward on Wednesday September 21 2016, @11:57PM

    by Anonymous Coward on Wednesday September 21 2016, @11:57PM (#404953)

    the naming of the quarks is strangely charming, beautiful in its own way.

    That's because we had top men putting their bottom dollar into the mix.

    • (Score: 1, Funny) by Anonymous Coward on Thursday September 22 2016, @12:46AM

      by Anonymous Coward on Thursday September 22 2016, @12:46AM (#404972)

      I guess these things have their ups and downs.

      • (Score: 2) by Gaaark on Thursday September 22 2016, @02:15AM

        by Gaaark (41) on Thursday September 22 2016, @02:15AM (#404992) Journal

        Don't forget the ins and outs... love the ins and outs... especially when they go in and out and in and out and........

        shit.
        Where's the kleenex....

        --
        --- Please remind me if I haven't been civil to you: I'm channeling MDC. ---Gaaark 2.0 ---
  • (Score: 0) by Anonymous Coward on Thursday September 22 2016, @02:11AM

    by Anonymous Coward on Thursday September 22 2016, @02:11AM (#404988)

    The Big Bang was a derisive term coined by Fred Hoyle that got picked up by the press.

    The God Particle was created by Leon Lederman's book publisher; he did not like the term but the publisher thought it made a wonderful book title. The press loved it too.

    It ain't the physicists naming these things.