Google發佈突破性量子計算芯片Willow，實現兩大歷史性突破
Google Quantum AI實驗室近日宣佈推出最新量子計算芯片Willow，在量子錯誤糾正和計算性能兩個關鍵領域實現重大突破，爲實用化量子計算邁出關鍵一步。歷史性突破：量子錯誤指數級降低Willow最重要的突破在於首次實現了"閾值以下"（below threshold）量子錯誤糾正，解決了困擾量子計算領域近 30 年的核心挑戰。研究團隊在Nature雜誌發表的論文中展示，通過使用更多量子比特，系統的錯誤率呈指數級下降。具體實驗中，研究人員分別測試了3×3、5× 5 和7× 7 的量子比特陣列。隨着陣列規模擴大，每
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