ProcessTomographyFitter

class ProcessTomographyFitter(result, circuits, meas_basis='Pauli', prep_basis='Pauli')

Bases: qiskit.ignis.verification.tomography.fitters.base_fitter.TomographyFitter

Maximum-Likelihood estimation process tomography fitter.

Initialize tomography fitter with experimental data.

Parameters

• result (Union[Result, List[Result]]) – a Qiskit Result object obtained from executing tomography circuits.

• circuits (Union[List[QuantumCircuit], List[str]]) – a list of circuits or circuit names to extract count information from the result object.

• meas_basis (Union[TomographyBasis, str]) – (default: ‘Pauli’) A function to return measurement operators corresponding to measurement outcomes. See Additional Information.

• prep_basis (Union[TomographyBasis, str]) – (default: ‘Pauli’) A function to return preparation operators. See Additional Information

Methods

add_data	Add tomography data from a Qiskit Result object.
fit	Reconstruct a quantum channel using CVXPY convex optimization.
set_measure_basis	Set the measurement basis
set_preparation_basis	Set the preparation basis function

Attributes

data

Return tomography data

measure_basis

Return the tomography measurement basis.

preparation_basis

Return the tomography preparation basis.