Quantum Error Correction: If Technologists Can’t Perfect It, Quantum Computers Will Never Be Big

…For 25 years, QEC researchers have largely focused on mathematical strategies for encoding qubits and efficiently detecting errors in the encoded sets…

…Only recently have investigators begun to address the thorny question of how best to implement the full QEC feedback loop in real hardware…

…And while many areas of QEC technology are ripe for improvement, there is also growing awareness in the community that radical new approaches might be possible by marrying QEC and control theory…

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