Quantum Computing, Fault Tolerance, Error Correction, Logical Qubits.
paper: Correcting coherent errors with surface codes Sergey Bravyi, Matthias Englbrecht, Robert Koenig, Nolan Peard https://arxiv.org/abs/1710.02270 https://www.nature.com/articles/s41534-018-0106-y Depth d is the square root of physical qubits per logical qubit in a surface code When you read