TL;DR: Willow achieved a historic milestone: quantum error correction below the critical threshold, where adding more qubits reduces errors rather than increasing them. This is the first demonstration of exp
Willow achieved a historic milestone: quantum error correction below the critical threshold, where adding more qubits reduces errors rather than increasing them. This is the first demonstration of exponential error suppression. Willow also completed a random circuit sampling benchmark in 5 minutes that would take the world's fastest supercomputer 10 septillion years.
Manufacturer
Google Quantum AI
Technology
Superconducting transmon
Gate Fidelity
99.7% 2-qubit gate; below quantum error correction threshold
Status
Operational (Dec 2024); demonstrated below-threshold error correction