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 Team makes circuit for quantum computer

 The Yomiuri Shimbun

 A joint team of researchers from NEC Corp., the Institute of Physical and Chemical Research (Riken) and other institutions has developed a basic circuit for a quantum computer, taking a step closer to realizing the superfast information-processing machine.

 The team published its findings in the Friday's issue of the U.S. magazine Science.

 A quantum computer could perform in several tens of seconds calculations that existing supercomputers would take 10 million years to do. It has been attracting global attention because it could revolutionize information communications if it is actually produced.

 In quantum computing, properties of ultramicroscopic particles, such as the rotation of an electron, are used to perform operations on data. The team has been experimenting using a thin aluminum film kept at low temperature superconductive state for the basic circuit.

 ( May. 5, 2007 )

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