Google's Willow chip
A quantum processor gets more accurate as it gets bigger, crossing the error-correction threshold.
- When
- Known to
- ± 12 hours
- Era
- Contemporary, Holocene
Announced 9 December 2024, Willow was the first quantum processor to show that adding physical qubits could reduce the logical error rate — the below-threshold result error correction had promised since the 1990s. Google also ran a benchmark it said would take a classical supercomputer longer than the age of the universe, a claim contested as it had been in 2019.