TomographyFitter¶

class TomographyFitter(result, circuits, meas_basis='Pauli', prep_basis='Pauli')[source]¶

Base maximum-likelihood estimate tomography fitter class

Initialize tomography fitter with experimental data.

Parameters

result (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

Attributes

`TomographyFitter.data`	Return tomography data
`TomographyFitter.measure_basis`	Return the tomography measurement basis.
`TomographyFitter.preparation_basis`	Return the tomography preparation basis.

Methods

`TomographyFitter.add_data`(result, circuits)	Add tomography data from a Qiskit Result object.
`TomographyFitter.fit`([method, …])	Reconstruct a quantum state using CVXPY convex optimization.
`TomographyFitter.set_measure_basis`(basis)	Set the measurement basis
`TomographyFitter.set_preparation_basis`(basis)	Set the preparation basis function