qiskit.quantum_info.StabilizerState.expectation_value¶
- StabilizerState.expectation_value(oper, qargs=None)[source]¶
Compute the expectation value of a Pauli operator.
- প্যারামিটার
oper (Pauli) -- a Pauli operator to evaluate expval.
qargs (None or list) -- subsystems to apply the operator on.
- রিটার্নস
the expectation value (only 0 or 1 or -1 or i or -i).
- রিটার্ন টাইপ
complex
- রেইজেস
QiskitError -- if oper is not a Pauli operator.