Quantum Computing, Fault Tolerance, Error Correction, Logical Qubits.
Zhu, Yoder, Hertzberg, Cross https://arxiv.org/abs/1907.09528 https://journals.aps.org/prx/abstract/10.1103/PhysRevX.10.011022 A dozen of so: 13 9 data qubits and 4 ancilla qubits Bacon-Shor-13 code Fault-Tolerant Operation of a Quantum Error-Correction Code Egan, Monroe, et al