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Breakthrough AQEC Protocol Boosts Quantum Coherence Time

10/2/2025

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Summary

Story summary

Researchers unveil an autonomous quantum error correction (AQEC) protocol that extends coherence time beyond traditional measurement-based methods.
The protocol stabilizes logical qubits with surface code using engineered drives and dissipation on superconducting qubits.
Key metrics are logical error rate and coherence time; code distance matters.
The study reports the first bosonic logical qubit protected by AQEC, a notable advance.

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Story summary

Researchers unveil an autonomous quantum error correction (AQEC) protocol that extends coherence time beyond traditional measurement-based methods.
The protocol stabilizes logical qubits with surface code using engineered drives and dissipation on superconducting qubits.
Key metrics are logical error rate and coherence time; code distance matters.
The study reports the first bosonic logical qubit protected by AQEC, a notable advance.