[ExI] Quantum supremacy

Giulio Prisco giulio at gmail.com
Wed Oct 23 12:43:55 UTC 2019


Wow! Awesome. I will read the Nature paper, and I am wondering whether it
is identical to the draft that had been previously leaked, or different.

On 2019. Oct 23., Wed at 12:36, John Clark via extropy-chat <
extropy-chat at lists.extropy.org> wrote:

> Today Google officially published in the journal Nature it's
> article claiming their 53 Qubit Quantum Computer (it was actually 54 Qubit
> but one Qubit didn't work) could solve a problem in 3 minutes and 20
> seconds that it would take Summit, the world's largest supercomputer,
> 10,000 years to solve:
>
> Quantum supremacy <https://www.nature.com/articles/s41586-019-1666-5>
>
> Very recently IBM, another company working on Quantum Computers, has
> disputed Google's claim:
>
> https://arxiv.org/pdf/1910.09534.pdf
>
> IBM says they have found a classical algorithm that if running on the
> largest classical supercomputer in the world could do what Google's Machine
> did in 2.55 days, and if all 54 Qubits had been working duplicated it in
> 5.80 days; that's still a lot less than 3 minutes and 20 seconds but it's
> not 10,000 years. It should be noted that unlike Google IBM has not
> actually performed the calculation to prove what they say is true.
>
>  John K Clark
>
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