Protecting a quantum memory is one step toward reliable computation.
Google Quantum AI and collaborators measured lower logical-memory error as surface-code distance increased under their experimental conditions.
Qualification: A memory experiment does not establish arbitrary useful fault-tolerant applications.
Checked 30 September 2026.
Paper (online 9 December 2024): https://www.nature.com/articles/s41586-024-08449-y
Correction (28 April 2026; Figure 3a labels/keys): https://www.nature.com/articles/s41586-026-10559-8.pdf
Original text by QubitWire, CC BY 4.0.
Optional reading context: https://qubitwire.com/resources/source-check
Contact: gotqubits@gmail.com