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    Halfling in the Playground
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    Mar 2017

    Default Do we have Quantum computers already or are they still in the pipeline?

    All of the science forums I'm on say that quantum computers aren't futuristic technology, that we already have them. It's driving me crazy (among other things) because I thought that Google was striving this year to finally make one, but people say "no, we have them, they just aren't commercial yet." So what does this article mean? (I didn't read the whole article, but I take it that they are still attempting to make a big one)

    http://www.innovationtoronto.com/201...ntum-computer/

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    Titan in the Playground
     
    BlackDragon

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    Default Re: Do we have Quantum computers already or are they still in the pipeline?

    The critical part you're missing is in the title of the article: "Large-scale". We can produce the quantum equivalent of logic gates, AFAIK, but we haven't yet figured out how to link them all together into something that would actually work as a computer.

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    Bugbear in the Playground
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    Nov 2006

    Default Re: Do we have Quantum computers already or are they still in the pipeline?

    Definitely not the most reliable news source, but this article helped me understand what's going on in the quantum computing world:

    https://gizmodo.com/what-the-hell-is...sho-1819296509

    Enjoy

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    Colossus in the Playground
     
    Eldan's Avatar

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    Default Re: Do we have Quantum computers already or are they still in the pipeline?

    I remember a talk I saw a few years ago now about how it had, at the time, become possible to effectively measure and influence a single atom well enough that it could basically function as one Qbit. As the article says, however, the current problem is connecting more than a handful of them together into one machine without everything collapsing.
    Its honest. What our religion tells us, the part that is a religion, is that the gods created life to try and make meaning. Its ultimately hopeless, and even gods die, but the effort is real. Will always have been real, even when everything is over and no one remembers.
    -The Litany of Earth, Ruthanna Emrys

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    Troll in the Playground
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    Default Re: Do we have Quantum computers already or are they still in the pipeline?

    Ta da. whitespace
    Last edited by Grinner; 2017-12-04 at 06:13 PM.

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    Lord Torath's Avatar

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    Default Re: Do we have Quantum computers already or are they still in the pipeline?

    I want to say that China has sent up a satellite with a quantum computer on-board. But I might have mis-remembered the story.
    Thri-Kreen Ranger/Psionicist by me, based off of Rich's A Monster for Every Season

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    Dwarf in the Playground
     
    AssassinGuy

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    Default Re: Do we have Quantum computers already or are they still in the pipeline?

    The best we have right now are Quantum Annealers. They aren't general purpose computing machines, but they can be set up to solve sets of problems that are biased towards quantum computing. I believe the most recent generation is faster than what a regular supercomputer running in the same power range for correctly optimised problems, though not drastically so.

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