[ExI] Quantum Supremacy

[Dave Sill]

On Thu, Nov 30, 2017 at 9:47 AM, John Clark <johnkclark at gmail.com> wrote:

> ​
> *They used their computers to simulate a quantum system*, the particular
> problem they solved is not very useful but the implications are enormous,
> it proves once and for all that a practical quantum computer that you can
> actually build can solve problems that a conventional computer can't.
>
> If I place 20 magnetized atoms in a lattice and then move one of those
> atoms how will the entire array move in response?  A good home computer
> could solve that problem but the difficulty increases exponentially as the
> number  of atoms increases, when you get to about 50 atoms even the largest
> supercomputer on Earth starts to beg for mercy, but in the new reports one
> quantum computer solved the 51 atom problem and the other solved 53. T*he
> mechanical details of the 2 machines are different, one used very tightly
> focused LASER beams and rubidium atoms and the other used electrically
> charged ytterbium ions, but they both got the job done.*
>

Which is it? Quantum computers simulated on conventional computers or real
quantum computers?

-Dave
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