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• FTQC Error Correction & Overhead Breakthroughs: Google Quantum AI demonstrated physical "magic state cultivation" on its Willow processor to achieve a 40-fold error reduction (99.99% T-state fidelity) and introduced modular hyperbolic codes that reduce physical-to-logical qubit overhead up to 30-fold.
• AI-Driven Circuit & Decoder Automation: Researchers from Anthropic, Harvard, and QuEra deployed LLMs to discover fault-tolerant quantum circuits (slashing space-time resource costs up to 9,100x), while IBM utilized open-weight AI agent factories to achieve a 52x hardware speedup for qLDPC…
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