IonQ Demonstrates Real-Time QEC Decoding at MegaQuOp Scale on a Single Apple M4 Max CPU - Quantum Computing Report

IonQ quantum information researchers Min Ye, Andrii Maksymov, and Nicolas Delfosse have published research on arXiv (arXiv:2608.25027) detailing an end-to-end real-time Quantum Error Correction (QEC) decoding pipeline for large-scale trapped-ion quantum computers. Executed entirely on a single off-the-shelf Apple M4 Max CPU (12 cores used), the decoding stack processed MegaQuOp-scale workloads featuring up to 408 logical qubits and over 1 million T gates / 1.3 million logical measurements with near-zero computational stretch (decoding backlog delays). [ IonQ MegaQuOp Real-Time QEC Decoding Stack ] Hardware Architecture & Scale Decoding Pipeline & DEM Strategy Performance & Stretch Metrics • Walking Cat Architecture (WCA) [...]

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