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Google's result targets a practical bottleneck in fault-tolerant quantum computing: magic states are needed for universal gates, and producing them reliably has been costly in qubits and overhead. The reported ~40-fold error reduction and 99.99% fidelity are promising, but they come from a company announcement on a specific state on one chip, so readers should watch for independent replication and how the approach scales to full logical circuits.

Surse care acoperă36Kr, Quantum Frontiers, Quantum Zeitgeist, LessWrong

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Google Says Quantum Computing Achieves New Breakthrough, Willow Chip Error Rate Reduced About 40-Fold

36Kr15 octombrie 20261 min de cititArticolul și perspectiva sunt în engleză.

In a statement released October 15 local time, Google said its Quantum AI team successfully validated a new technique called "Magic State Cultivation" on its Willow quantum chip, reducing the error rate of specific quantum states by about 40 times and producing quantum states with 99.99% accuracy. The related research has been published in the journal Science. (Google)

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