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Quantum error correction challenges the fragility problem
From The Road to Useful Quantum Computing: From Qubits to Error Correction
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Research
Quantum error correction challenges the fragility problem
Researchers showed that quantum information could be protected without directly copying an unknown quantum state.
Error-correcting codes distribute one logical qubit across multiple physical qubits so errors can be detected and corrected. The cost is substantial overhead, but fault tolerance is the central route toward long computations that survive noise.
