Transpilation of QEC

[quantumjim]

Problem: For a given code, how should the qubits in the code be associated with qubits on the device?

When using QEC for fault-tolerant computations, much of the transpilation will be of operations required for QEC. The structure of the code will therefore be very useful in figuring out how to map the circuit to the device. The transpiler needs to know how to use this information

When testing the code, or doing benchmarking, it is important to be able to determine exactly which qubits are doing which jobs. We need ways to allow users to manually make these assignments in a straightforward way.