Researchers at the University of New South Wales in Australia have built a quantum logic gate in silicon for the first time -- a major step toward quantum computers.
“We’ve demonstrated a two-qubit logic gate – the central building block of a quantum computer – and, significantly, done it in silicon. Because we use essentially the same device technology as existing computer chips, we believe it will be much easier to manufacture a full-scale processor chip than for any of the leading designs, which rely on more exotic technologies," stated Andrew Dzurak, Scientia Professor and Director of the Australian National Fabrication Facility at UNSW.
“This makes the building of a quantum computer much more feasible, since it is based on the same manufacturing technology as today’s computer industry,” he added.
Professor Kohei M. Itoh from Keio University in Japan provided specialised silicon wafers for the project.
http://newsroom.unsw.edu.au/news/science-tech/crucial-hurdle-overcome-quantum-computing
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