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R&D: Diamond Qubits Are A Quantum Computer Enthusiast's Best Friend

Discussion in 'News' started by qubit, Dec 2, 2011.

  1. qubit

    qubit Overclocked quantum bit

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    A qubit is the quantum equivalent of the 'bit', which can have the values, or 'states' of zero or one. However, because of their quantum nature, qubits can be in both states at once, due to a property called entanglement, the "spooky action at a distance" so disliked by Einstein. It's this remarkable property that gives quantum computers their huge processing power, such as the ability to crack all encryption schemes based on classical methods. If only mankind could build them. Quantum computers are still very much in an embryonic research phase and have been stuck there for decades, due to the difficulty of producing and working with entangled particles. The best that scientists have been able to do so far is to entangle just a few particles at extremely low temperatures, to reduce thermal noise corruption, to create qubits and research their behaviour. Now, it looks like mankind is a tiny step closer to building such quantum computers and this is where diamond comes in.

    [​IMG]

    A team of scientists at Oxford University, England, lead by Ian Walmsley, have managed to put two three millimetre-sized bits of diamond, separated by a distance of 15 mm in an entangled state. They used a complex arrangement of lasers and beam splitters, such that any given photon could be in either diamond, thereby entangling them. Now, there's two amazing parts to this extraordinary feat: the diamond particles being entangled are gigantic, being big enough to be easily visible to the naked eye, plus they were at room temperature! Normally, this kind of thing needs to be done at near absolute zero, because heat gives the particles so much energy that they fall out of entanglement, ruining the experiment. The team have had their work published (paywall) in the prestigious journal Science, which shows us this abstract:
    However, this cautionary note was sounded by Californian quantum mechanics research scientist Andrew Cleland: "I am not sure where this particular work will go from here. I can't think of a particular use for entanglement that lasts for only a few picoseconds" in rival journal Nature. However, Walmsley insisted that "diamond could form the basis of a powerful technology for practical quantum information processing".

    And it might well do. History has shown us that the path to useful inventions which can be used in practical applications is never a linear one and is full of setbacks, accidents and surprises. The next few years are sure to be very interesting indeed - especially for fans of quantum computers...

    Sources: The Register & Nature (which goes into the technical details of this experiment)
     
    Last edited: Dec 2, 2011
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  2. W1zzard

    W1zzard Administrator Staff Member

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    and no, the author of this article didnt invent it
     
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  3. NC37

    NC37

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    Give a regular girl a diamond, she'll get freaky with you in happiness...

    Give a nerd girl a diamond, she'll get freaky with it then conquer the computing world...

    Whether nerd or normie, diamonds are still a girl's best friend :D
     
  4. Saidrex

    Saidrex

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    ...one step closer to SkyNet :wtf:
     
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  5. meirb111 New Member

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    and they said 10 years ago that will build organic cpus

    and they said 10 years ago they can build organic cpus

    still waiting :laugh::laugh:
     
  6. theJesus

    theJesus

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    One day, we'll have quantum organic cpus.
     
  7. fullinfusion

    fullinfusion 1.21 Gigawatts

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    Id let ya all in on it's secret but your not ready yet.
     
  8. qubit

    qubit Overclocked quantum bit

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    No, I never said I did! :eek: And yes, I couldn't resist the puns. :D
     
  9. Easy Rhino

    Easy Rhino Linux Advocate

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    but will they run crysis?
     
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  10. Damn_Smooth

    Damn_Smooth New Member

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    :shadedshu :slap:
     
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  11. Easy Rhino

    Easy Rhino Linux Advocate

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    actually, it would be running crysis and NOT running crysis at the same time :eek: :respect:
     
  12. theJesus

    theJesus

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    Forget Crysis, what about Metro2033?
     
  13. qubit

    qubit Overclocked quantum bit

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    Here's a nice addition to this story, courtesy of New Scientist:
    Yes, I think that's fantastic. How would something the size of a DVD drive look in a quantum state? How would it behave? I've wondered this myself several time and now we may finally find out.
     
  14. theJesus

    theJesus

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    What would it be like to have quantum sex?
     
  15. qubit

    qubit Overclocked quantum bit

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    Well, you could have all combinations of partners at once and in all positions. As you start to increase the number of simultaneous partners, the combinations and positions would explode!
     
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  16. theJesus

    theJesus

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    Sign me up! :laugh:
     
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  17. Mussels

    Mussels Moderprator Staff Member

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    "is your quantum CPU overclocked?"

    "yes and no"


    so many jokes for future generations to make.
     
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  18. Andrei23 New Member

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    ...now I get it!
     
  19. tayga New Member

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    iv seen about this on tv before it's gonna be way more powerfull than silicone because it conducts way better http://tpucdn.com/forums/images/smilies/rockout.gif
    some company is able to clone a bunch (perfect diamond) so it might end up in computers soon
     
  20. pantherx12

    pantherx12 New Member

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    They've been made, can't find a link right now but a CPU made from slug brains was made quite some time back, they've also more recently made one out of bacteria.
     

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