To Live Up to the Hype, Quantum Computers Must Repair Their Error Problems

To live up to the hype, quantum computers must repair their error problems
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Physicists try to construct ways to find and correct errors in quantum computers without wrecking the data. Astronaut John Glenn was wary about trusting a computer. It was 1962, early in the computer age, and a room-sized machine had calculated the flight path for his upcoming orbit of Earth — the first for an American. But Glenn wasn’t willing to entrust his life to a newfangled machine that might make a mistake. The astronaut requested that mathematician Katherine Johnson double-check the computer’s numbers, as recounted in the book Hidden Figures . “If she says they’re good,” Glenn reportedly said, […]

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