## BBC News – Quantum computing device hints at powerful future

The 6cm-by-6cm chip holds nine quantum devices, among them four “quantum bits” that do the calculations.

The team said further scaling up to 10 qubits should be possible this year.

Rather than the ones and zeroes of digital computing, quantum computers deal in what are known as superpositions – states of matter that can be thought of as both one and zero at once.

In a sense, quantum computing’s one trick is to perform calculations on all superposition states at once. With one quantum bit, or qubit, the difference is not great, but the effect scales rapidly as the number of qubits rises.

The figure often touted as the number of qubits that would bring quantum computing into a competitive regime is about 100, so each jump in the race is a significant one.

“It’s pretty exciting we’re now at a point that we can start talking about what the architecture is we’re going to use if we make a quantum processor,” Erik Lucero of the University of California, Santa Barbara told the conference.

via BBC News – Quantum computing device hints at powerful future.

So, you’ve all got a plan for how to keep your encrypted data safe once all currently used encryption schemes are rendered obsolete by these quantum computers when the first one is rolled out for production, right?

I’m figuring that if ANYTHING we currently have access to is to hold up against quantum computers, it’d be the hidden encrypted volumes, which I know are supported by TrueCrypt, and probably some other programs. But basically, if encryption can be seen at all, quantum computers will make short work of it. And this article suggests these things are moving along a lot faster than I’d been led to believe…

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