KentuckyFC writes "To do anything useful with quantum logic gates, you need dozens and preferably hundreds of them, all joined together. And because of various errors and problems that creep in, that's more or less impossible with today's technology. Now an Australian group has built and tested logic gates that convert qubits into qutrits (three level quantum states) before processing and then convert them back again. That makes them far more powerful. The group says that a quantum computer that might reqire 50 conventional quantum logic gates can now be built with just 9 of the new gates. What's more, the gates process photons using nothing more than standard linear optical components (abstract on the physics arxiv). Australia for world domination of the quantum computing industry?" Link to Original Source
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I smell a movie plot... (Score:1)