Return a fitter object that is a subset of the qubits in the original list.
This is only a partial implementation of the
subset_fittermethod since only mitigation patterns of length 1 are supported. This corresponds to patterns of the form
[, , , ...]. Note however, that such patterns are a good first approximation to mitigate readout errors on large quantum circuits.
qubit_sublist (list) – must be a subset of qubit_list
- A new fitter that has the calibration for a
subset of qubits
- Type renvoyé
QiskitError – If the calibration matrix is not initialized
QiskitError – If the mit pattern is not a tensor of single-qubit measurement error mitigation.
QiskitError – If a qubit in the given
qubit_sublistis not in the list of qubits in the mit. pattern.