Quantum Computing, Fault Tolerance, Error Correction, Logical Qubits.
https://ai.googleblog.com/2018/03/a-preview-of-bristlecone-googles-new.html IBM has mentioned it as well, in 2020: Hardware-aware approach for fault-tolerant quantum computation “the surface code is the most famous candidate for near-term demonstrations (as well as mid- to long-term applications)