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Qbits unstable: May Limit Quantum Computing

Posted by timothy on from the that-would-be-a-downer dept.

museumpeace writes "Netherlands Organiztion for Scientific Research provies a human-readable description of research into the stability of Qbits conducted at Leiden University. The bad news: " Much to their surprise they discovered that the coherence tends to spontaneously disappear, even without external influences." The whole story in physicist-readable form is in the June 17 Physical Review Letters by van Wezel, van den Brink, Zaanen [click abstract or huge PDF]. I am not buying any quantum computing startups 'til they nail this matter down...you can't build a computer if state information is going to evaportate in a second or less."

4 of 73 comments (clear)

  1. Nonsense. by FooAtWFU · · Score: 5, Funny
    I'm running on a quantum computer right now, and I've not experienced and problems with any instacpqHeIkHBciBhAw 1uU6T1EK22qB9BBhokmNK6Ddv8CzpsgSEm HWn0CQEzPkDZJijN66jc/yy9Z3DBPguo1IqgWpSPMnqXAz4c8W f+2AVHipQWAsqw7QMZ7RO5k6Rr03cSM8d3uM+KdRTBV/q

    ++ATH
    NO CARRIER

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    The World Wide Web is dying. Soon, we shall have only the Internet.
  2. TFA says it's related to the size of the qubit by bornyesterday · · Score: 3, Funny

    Solution: get more cats.

  3. Evaporation by masterzora · · Score: 5, Funny

    you can't build a computer if state information is going to evaportate in a second or less. Why not? We Windows users are used to it...

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    Remember, open source is free as in speech, not free as in bear.
  4. I used to play with Qbits when I was a kid by NTT · · Score: 4, Funny

    I always did wonder about the stability of the purple fuzzy guy... I mean how did you know which way was up? Left actually went up and left meanwhile right went up and right and so on. Not to mention that nerve-racking sound when the springy green snake thingy grabbed him was awful. No wonder he is unstable. I would be too.

    Wait... did I read that right???