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Physics World

Commercial quantum computer sold to US defence firm

Hamish Johnston

Published Jul 1, 2011• 0 citations
Publisher

Abstract

A Canadian firm claims to have sold the world's first commercially available quantum computer.
DOI
10.1088/2058-7058/24/07/11

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After a year of outside investigation, questions remain about a controversial quantum computer. When in 1935 physicist Erwin Schrodinger proposed his thought experiment involving a cat that could be both dead and alive, he could have been talking about D-Wave Systems. The Canadian start-up is the maker of what it claims is the world's first commercial-scale quantum computer. But exactly what its computer does and how well it does it remain as frustratingly unknown as the health of Schrodinger's poor puss. D-Wave has succeeded in attracting bigname customers such as Google and Lockheed Martin Corp. But many scientists still doubt the long-term viability of D-Wave's technology, which has defied scientific understanding of quantum computing from the start.