TOKYO -- It is called "quantum supremacy," the ability to harness quantum technology to achieve computational power that cannot be achieved by a conventional computer. So far, only Google has laid claim to reaching that milestone, but now a team of researchers in China say they too conquered that level.
So far, the quantum computers used are designed to solve specific, narrowly defined problems, so the long-term outlook for the technology is still uncertain, but China's growing prominence in the field is striking.
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