qiskit.ignis.mitigation.TensoredExpvalMeasMitigator.assignment_fidelity

TensoredExpvalMeasMitigator.assignment_fidelity(qubits=None)

Return the measurement assignment fidelity on the specified qubits.

The assignment fidelity on N-qubits is defined as \(\sum_{x\in\{0, 1\}^n} P(x|x) / 2^n\), where \(P(x|x) = \rangle x|A|x\langle\), and \(A\) is the assignment_matrix().

Parameters

qubits (Optional[List[int]]) – Optional, qubits being measured for operator expval.

Returns

the assignment fidelity.

Return type

float