Artificial intelligence researchers at Google regularly log into a D-Wave computer over the Internet to try it out, and 2011 also saw the company sign its first customer. Defense contractor Lockheed Martin paid $10 million for a computer for research into automatically detecting software bugs in complex projects such as the delayed F-35 fighter (see “Tapping Quantum Effects for Software that Learns“). Questions remain about just how its technology works, but D-Wave says more evidence is forthcoming. It is readying an improved processor that Rose calls the company’s first true product rather than a piece of research equipment. D-Wave is expected to announce other major customers in coming months.
“At an engineering level they’ve put together a setup that’s impressive in various ways,” says Scott Aaronson, an MIT professor who studies the limits of quantum computation. “But in terms of the evidence that they’re solving problems using quantum mechanics faster than you could classically, I don’t think it’s there yet.” A fierce critic of D-Wave in the years following its 2007 demo, Aaronson softened his stance last year after the company’s Nature paper showing quantum effects. “In the past there was an enormous gap between the marketing claims and where the science was and that’s come down, but there’s still a gap,” says Aaronson, who visited the company’s labs in February. “The burden of proof is on them and they haven’t met the burden yet.”