Quantum computer chips pass key milestones

Quantum computer chips pass key milestones – physics-math – 01 September 2011 – New Scientist.

 

Quantum computer users may soon have to wrestle with their own version of the “PC or Mac?” question. A design based on superconducting electrical circuits has now performed two benchmark feats, suggesting it will be a serious competitor to rival setups using photons or ions. …

Previously, setups using photons or trapped ions as qubits have made the most headway in early calculations. Now Matteo Mariantoni of the University of California, Santa Barbara, and colleagues have boosted the computing power of a rival design, first demonstrated in 2003, that uses tiny, superconducting wires instead.

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