IonQ Researchers Successfully Run MegaQuOp-Scale Quantum Error Decoder on MacBook Pro
Researchers at IonQ have demonstrated that a standard MacBook Pro, equipped with an Apple M4 Max processor, can effectively decode simulated MegaQuOp-scale quantum workloads. These workloads involved up to 408 logical qubits and over 1 million quantum operations. The decoding system, designed for proposed trapped-ion quantum computers, added minimal overhead to computation time: less than 0.3% at a two-qubit gate error rate of 0.01%, and under 12% at a 0.05% error rate. This achievement suggests that a single CPU could manage error correction for future fault-tolerant quantum machines. The study, published on arXiv, modeled IonQ’s proposed 'walking cat' trapped-ion architecture, which uses quantum low-density parity-check codes and 'magic-state factories' for T gates. The largest configuration tested involved 11,680 physical qubits and 408 logical qubits, simulating complex workloads like measurement-induced phase transitions and disordered Heisenberg models. The researchers optimized the decoder to update... 
