Provably Efficient Self-Calibrating Quantum Fault Tolerance
Quantum error correction protects logical information only when every physical operation remains below the fault-tolerance threshold, a condition that must be maintained continuously rather than only at the initial calibration. In practice, however, analog control parameters inevitably drift because of environmental fluctuations. As future fault-tolerant quantum computations are expected to run for days or even months, interrupting computation for repeated recalibration becomes fundamentally impractical. A promising alternative is to integrate calibration directly into computation by repurposing syndrome measurements as a calibration signal (Sivak et al, Nature 2026), but whether such sel...
| Authors | Weiyuan Gong, Hong-Ye Hu |
|---|---|
| Primary category | quant-ph |
| Published | 6 August 2026 |
| Last updated at source | 20 August 2026 |
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