On Sat, Oct 19, 2013 at 10:19 PM, meekerdb <meeke...@verizon.net> wrote:
> On 10/19/2013 2:08 AM, Telmo Menezes wrote:
>
> Scientists have been debating D-Wave's quantumness since the company
> announced its first device in 2004. It is an argument that continues
> both online, in blog posts and forums, and in scientific journals.
>
> One side argues there is too much noise in the D-Wave system, which
> prevents consistent entanglement. But in an adiabatic device, certain
> types of entanglement are not as vital as they are in the traditional
> model of a quantum computer.
>
> Some researchers are attempting to solve this conundrum by proving the
> presence or absence of entanglement. If they show entanglement is
> absent, that would be the end of the discussion. On the other hand,
> even if some of D-Wave's qubits are entangled, this doesn't mean the
> device is taking advantage of it.
>
> http://www.insidescience.org/content/d-wave-computers-solution-raises-more-questions/1453
>
>
> To me, the interesting point is that the D-Wave is not faster (or even as
> fast) as classical computers that are designed specifically to solve the
> class of problems the D-Wave does.  Of course the D-Wave people say that's a
> matter of scale and the quantum computer will be faster as the problem
> scales up.

Agreed. Unlike many other problems, it seems easy to describe what
success looks like for quantum computers: performing some computation
faster than the fastest classical computer. Then there will be no more
space for doubt.

Telmo.

> Brent
>
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