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Qutrits Bring Quantum Computers Closer

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Old 04-04-2008
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Qutrits Bring Quantum Computers Closer
KentuckyFC writes "To do anything useful with quantum logic gates, you need dozens to 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 require 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)."Read more of this story at Slashdot.
http://rss.slashdot.org/~a/Slashdot/slashdot?i=z8wo6x


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