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Old 09-22-2008, 07:18 AM   #44
Undertoad
Radical Centrist
 
Join Date: Jan 2001
Location: Cottage of Prussia
Posts: 31,423
Yeah, let's put it this way: if D-Wave actually produced a working model they would have suitors lining up on one side to give them tons of money (not just a few million in VC change) and suitors lined up on the other side to run applications.

But they don't. On either side.

Quote:
What do you know, a working quantum computer being demonstrated. It didn't even take the 3 years I said it would take.
You're a tool. Here's what an MIT researcher had to say about the demonstration:

http://scottaaronson.com/blog/?p=291

Quote:
At the group meeting preceding the talk, Farhi announced that he didn’t care what the press releases said, nor did he want to discuss what problems quantum computers can solve (since we academics can figure that out ourselves). Instead he wanted to focus on a single question: is D-Wave’s device a quantum computer or not? What followed was probably the most intense grilling of an invited speaker I’ve ever seen.

It quickly emerged that D-Wave wants to run a coherent quantum computation for microseconds, even though each of their superconducting qubits will have completely decohered within nanoseconds. Farhi had to ask Amin to repeat this several times, to make sure he’d gotten it right.

Amin’s claim was that what looks like total decoherence in the computational basis is irrelevant — since for adiabatic quantum computation, all that matters is what happens in the basis of energy eigenstates. In particular, Amin claimed to have numerical simulations showing that, if the temperature is smaller than the spectral gap, then one can do adiabatic quantum computation even if the conventional coherence times (the t1 and t2) would manifestly seem to prohibit it.

The physicists questioned Amin relentlessly on this one claim. I think it’s fair to say that they emerged curious but severely skeptical, not at all convinced by the calculations Amin provided, and determined to study the issue for themselves.

In other words, this was science as it should be. In contrast to their bosses, Amin and Berkley made a genuine effort to answer questions. They basically admitted that D-Wave’s press releases were litanies of hype and exaggeration, but nevertheless thought they had a promising path to a quantum computer. On several occasions, they seemed to be struggling to give an honest answer that would still uphold the company line.
That's D-Wave's top guys, Radar, right there in bold. They didn't say they have a QC. They said they thought they had a path to one. So if you have a tiny capacity for reading comprehension you now know for certain that you are a tool and will not continue to argue the point to make yourself look EVEN more idiotic, if that's possible.
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