Madison, Wis. - Researchers here claim to have created the world's first successful simulation of a quantum-computer architecture that uses existing silicon fabrication techniques. By harnessing both vertical and horizontal tunneling through dual top and bottom gates, the architecture lays out interacting, 50-nanometer-square, single-electron quantum dots across a chip. "Our precise modeling elucidates the specific requirements for scalable quantum computing-for the first time we have translated the requirements for fault-tolerant quantum computing into the specific requirements for gate voltage control electronics in quantum dots," said physics professor Mark Eriksson at the University of Wisconsin in Madison.
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