Ars Technica: A quantum (computing) gun revealed by quantum smoke

"I have to admit it: D-Wave is starting to produce some impressive results. For the uninitiated, D-Wave came to our attention by loudly and repeatedly claiming that it had built a quantum computer. Many of us were skeptical. Over time, though, D-Wave has answered its critics in the best way possible: by providing evidence. Now, researchers who actually got inside the black box are reporting some key results that come very close to removing any lingering doubts."

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