Ciro Santilli
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Quantum error correction | 🗖 nosplit | ↑ parent "Quantum computing" | 85

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Technique that uses multiple non-ideal qubits (physical qubits) to simulate/produce one perfect qubit (logical).
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TODO understand in detail. This appears to be a fundamental technique since all physical systems we can manufacture are imperfect.
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For example, when PsiQuantum raised 215M in 2020, they announced that they intended to reach 1 million physical qubits, which would achieve between 100 and 300 logical qubits.
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