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Google’s Willow Chip Cuts Quantum Error Rates 40‑Fold, Enabling Near‑Perfect Magic States

1 reports1 sources10/15/2026 updated

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Google claims its Willow quantum processor, using a novel magic‑state cultivation technique, reduces error rates by about 40‑fold and produces 99.99 % fidelity magic states. The breakthrough is said to cut the number of noisy qubits needed to break RSA‑2048 encryption from roughly 20 million to under 1 million. In experiments only about 8 % of attempts passed each check, meaning the chip discards more than nine‑tenths of trials to keep a clean state. The method had previously been tested only in theory and simulation. This development could dramatically lower the cost and scale required for practical quantum advantage, though independent verification and broader adoption remain pending.

Written with AI from the reporting · updated 10/15/2026

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New at this step ·Google Achieves Breakthrough in Quantum Computing Error Reduction

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  1. 10/16/2026, 6:28:10 AM

    Google Achieves Breakthrough in Quantum Computing Error Reduction

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  1. 1Oct 16, 00:00recorded Oct 16, 06:28single sourcerevised

    Google Willow芯片魔法态培育错误率降低40倍

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Oct 16
  1. DecryptSelected
    Google Achieves Breakthrough in Quantum Computing Error Reduction

    Google's Quantum AI team has reduced errors in quantum computing by 40 times using magic state cultivation on its Willow chip, crucial for running useful quantum programs. This advancement could significantly lower the cost of quantum computers, potentially impacting encryption and drug design.