D-Wave on rails: Company tests entanglement on its dual-rail qubits
Summary
Ars Technica reports on D-Wave's progress in gate-based quantum hardware, focusing on dual-rail qubits and a recent Nature paper validating entanglement. The piece details how dual-rail qubits work, their error hierarchy, fast entangling gates, and a roadmap to scale up the system toward larger logical qubits, with ongoing work in mid-circuit erasure detection and calibration stability.