Quantum error correction goes well beyond breakeven
Summary
Quantum error correction goes beyond breakeven, with Quantinuum's Helios trapped-ion system demonstrating that logical qubits can achieve significantly lower error rates as code distance increases. The results suggest meaningful improvements are possible before needing thousands of qubits, though practical scaling to large, useful workloads remains a challenge. The work highlights leakage suppression techniques and real-time syndrome processing that help push scalable quantum computing closer to reality.