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Wednesday, May 22, 2013

Is It a Quantum Computer?

I ran across an article on the new Dwave 2 "quantum" computer.

Some specialists are expressing skepticism about whether or not what is happening in the box is truly "quantum" in nature or not, but it does seem clear that something unusual is happening. The issue is that direct examination of a quantum system leads to a collapse of the wave function, at which point quantum effects are no longer observable.

As these machines are built and tested, it will be interesting to see what types of problems are solved more quickly with this device. The types of problems that are solved may help to indicate whether or not "entanglement" is being used in the way that the manufacturer claims.

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