Meet Bristlecone: Google's quantum processor that could achieve supremacy

By Greg S ยท 10 replies
Mar 6, 2018
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  1. As transistors become increasingly smaller and approach potential physical limitations, Google is hard at work on a quantum processor that could circumvent traditional problems. Bristlecone is a 72-qubit processor designed as a research tool for error correction.

    Previously, Google produced a 9-qubit processor with a 1 percent readout error. Single-qubit gates offered a 0.1 percent error while two-qubit gates had error rates of 0.6 percent. Compared to traditional microprocessors, these error rates are orders of magnitude larger and must be improved or otherwise dealt with to make problem solving accurate for the long term.

    The massive increase to 72 qubits stems from the original 9-cubit design. The same control, coupling, and readout designs have been arranged into a rectangular array. Bristlecone is not going to be a mass production-ready processor, but it will provide valuable information on algorithm development with improved first and second order error-correction.

    Google's end goal of Bristlecone is to achieve quantum supremacy for the future, or rather the ability to outperform traditional supercomputers when working on "well-defined" problems. To date, no quantum computing efforts have been able to reliably achieve this end goal. According to Google researchers, quantum supremacy can be achieved with 49 cubits, at least 40 time steps between input and output, and with two-qubit error rates of less than 0.5 percent.

    There is reasonable expectation that Bristlecone will be able to perform equally well to the original 9-cubit design in terms of error rates, but with significantly improved throughput capabilities. "We are cautiously optimistic that quantum supremacy can be achieved with Bristlecone, and feel that learning to build and operate devices at this level of performance is an exciting challenge!"

    Although there is a strong possibility that quantum supremacy may be achieved with current generation hardware, Google notes that it may take several hardware revisions before success is found. How long each iteration may take is unknown, meaning that it could still be quite some time before quantum computing is ready for use outside of a lab.

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  2. QuantumPhysics

    QuantumPhysics TS Addict Posts: 198   +118

    But can it mine Bitcoin?
     
    kombu likes this.
  3. RaXoR

    RaXoR TS Booster Posts: 98   +64

    If I'm not mistaken, quantum computing is aimed at cracking algorithms so technically it should be able to at a far higher rate than any ASIC device.
     
  4. RaXoR

    RaXoR TS Booster Posts: 98   +64

    Yes but can I install one at home and use it to host my personal minecraft server?
     
  5. RebelFlag

    RebelFlag TS Addict Posts: 153   +84

    No no no, the question is will it run Crysis!!!
     
    MonsterZero likes this.
  6. Digitalzone

    Digitalzone TS Enthusiast Posts: 57   +24

    Every breath you take, every move you make, every bond you break, every step you take)
    I'll be watching you
    (Every single day, every word you say, every game you play, every night you stay.
     
    Humza and JaredTheDragon like this.
  7. mbalensiefer

    mbalensiefer TS Enthusiast Posts: 53   +26

    Yes but with a large error rate.
     
  8. Silvernine

    Silvernine TS Enthusiast Posts: 34   +26

    Will it blend?
     
  9. captaincranky

    captaincranky TechSpot Addict Posts: 13,786   +3,203

    It won't mine Bitcoin, it won't play Crysis, nor will it run a Minecraft server. What it will do iz, track yo silly a**es around da interweb at well, wope speedz.

    Imagine all the "targeted advertising" Google could plant, with a server farm full of those things running "googleanalytics.exe". It confounds the mind, as well as most likely,raising the national credit card debt to hitherto unimaginable heights, which of course, would then require a quantum processor to calculate numbers that staggering.

    If anybody is even remotely interested in anything other than electronic "devices", the bristle cone pine, is the single longest lived, (non clonal colony), organism on the planet. https://en.wikipedia.org/wiki/Bristlecone_pine
     
    madboyv1 and H3llion like this.
  10. tipstir

    tipstir TS Ambassador Posts: 2,709   +169

    Google Hale, what should we do next play a game?
     
  11. JaredTheDragon

    JaredTheDragon TS Guru Posts: 402   +266

    You can immediately tell when anything in tech or science is bullshit simply by the misusage of the word, "quantum".

    These guys aren't even addressing the actual fundamental quanta, the photon. Qubits aren't remotely the same, nor anywhere near the same foundational level. There's nothing "quantum" or quantized about these ridiculous half-assed "computers", and they'll never achieve any level of superiority with fake physics and garbage engineering.

    Same promises, same failures, for decades now. Until these morons move below the electron, they'll be stuck with failure after expensive failure.
     

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