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Google claims to have reached quantum supremacy

114 点作者 somerandomness超过 5 年前

9 条评论

itcrowd超过 5 年前
The paper was called &quot;Quantum supremacy using a programmable superconducting processor&quot; and was available at [1] but is now removed.<p>I also found a partial abstract [2]: &quot;The tantalizing promise of quantum computers is that certain computational tasks might be executed exponentially faster on a quantum processor than on a classical processor. A fundamental challenge is to build a high-fidelity processor capable of running quantum algorithms in an exponentially large computational space. Here, we report using a processor with programmable superconducting qubits to create quantum states on 53 qubits, occupying a state space 2^53 ~ 10^16. Measurements fro…&quot;<p>Original plan was to have 72 qubits (as noted in the FT article) but was downsized to 53 for some reason. Original reporting on the 72-qubit plan here [3].<p>[1] (dead link) <a href="https:&#x2F;&#x2F;ntrs.nasa.gov&#x2F;search.jsp?R=20190030475" rel="nofollow">https:&#x2F;&#x2F;ntrs.nasa.gov&#x2F;search.jsp?R=20190030475</a><p>[2] <a href="https:&#x2F;&#x2F;agenparl.eu&#x2F;quantum-supremacy-using-a-programmable-superconducting-processor&#x2F;" rel="nofollow">https:&#x2F;&#x2F;agenparl.eu&#x2F;quantum-supremacy-using-a-programmable-s...</a><p>[3] <a href="https:&#x2F;&#x2F;www.technologyreview.com&#x2F;s&#x2F;610274&#x2F;google-thinks-its-close-to-quantum-supremacy-heres-what-that-really-means&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.technologyreview.com&#x2F;s&#x2F;610274&#x2F;google-thinks-its-...</a>
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hhs超过 5 年前
The article says:<p>&quot;A paper by Google’s researchers seen by the FT, that was briefly posted earlier this week on a Nasa website before being removed, claimed that their processor was able to perform a calculation in three minutes and 20 seconds that would take today’s most advanced classical computer, known as Summit, approximately 10,000 years.&quot;<p>Why was that paper removed on the Nasa website? Also, I&#x27;m curious if supplementary data was provided to support the claims?
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leonidasv超过 5 年前
<a href="https:&#x2F;&#x2F;archive.is&#x2F;8Oeqz" rel="nofollow">https:&#x2F;&#x2F;archive.is&#x2F;8Oeqz</a>
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habibr超过 5 年前
Here&#x27;s the full PDF <a href="https:&#x2F;&#x2F;drive.google.com&#x2F;file&#x2F;d&#x2F;19lv8p1fB47z1pEZVlfDXhop082Lc-kdD&#x2F;view" rel="nofollow">https:&#x2F;&#x2F;drive.google.com&#x2F;file&#x2F;d&#x2F;19lv8p1fB47z1pEZVlfDXhop082L...</a>
x4ict超过 5 年前
The Joshua Tree Quantum Computer Achieves Quantum Supremacy: Dr. Elliot McGucken&#x27;s research group hath created a quantum computer capable of simulating over five sextillion atoms in the form of water molecules, performing massively complex calculations in a fraction of a second, leveraging quantum entanglement in the Hilbert Space, thusly tapping into the power of higher dimensions and the space of parallel universes. These highly complex many-body calculations would take classical computers over a trillion trillion trillion years to solve and simulate. The JT Quantum Computer leverages the quantum multiverse to generate random numbers and pattern distributions via the entangled interactions of five sextillion atoms. Atoms in a drop of water = 3 atoms&#x2F;molecule x 1.67 x 10^21 molecules = 5.01 x 10^21 atoms, or five sextillion atoms.<p>The patent-pending Joshua Tree Quantum Computer works as follows:<p>One obtains an eye-dropper and a glass of water.<p>One takes up a drop of water in the eye-dropper.<p>One drops said drop of water onto a flat piece of glass.<p>Immediately one achieves and observes the random pattern distribution based on the entangled interactions between the over 5.01 x 10^21 atoms (five sextillion atoms), as the combined wave function collapses and the universe splits a trillion trillion times. Using a classical computer, one would be unable to simulate this calculation even after a trillion trillion trillions years. The JT Quantum Computer leverages the entangled quantum interactions between the atoms, thusly mining the Hilbert Space of parallel universes and the multiverse in a manner that is at least several sextillion times faster than IBM&#x27;s leading SUMMIT super computer.<p>And so the Joshua Tree Quantum Computer hath achieved quantum supremacy.<p>The Wright Brother&#x27;s first flight lasted under a minute, and already we have crossed far further than that, with big plans for the future, and multitudinous commercial applications. A new era hath dawned.<p>We are currently seeking $200 million in funding to complete the design of the Redwood Quantum Computer, which will involve an entire bucket of water and which will be able to leverage the many worlds of Sean Carroll.<p>dx4&#x2F;dt=ic friends, dx4&#x2F;dt=ic :) :)
buboard超过 5 年前
I&#x27;m not saying that this isnt significant, but their basic claim to fame &quot;quantum simulation in classical computers is slow&quot;. i hope there&#x27;s other uses for this supremacy
iMuzz超过 5 年前
&quot;The system can only perform a single, highly technical calculation, according to the researchers, and the use of quantum machines to solve practical problems is still years away.&quot;
lawrenceyan超过 5 年前
Someone’s about to get a stern talking to on Monday it seems.<p>I wonder though, if it was someone from NASA or from Google that made the mistake of uploading the paper earlier than they should have.
The_rationalist超过 5 年前
This website had a paywall... Why do Google claim to have reached quantum supremacy, can&#x27;t they prove it?
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