qiskit/releasenotes/notes/0.17/optimize_pauli_expval-afb98...

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---
features:
- |
Improved the performance of
:meth:`qiskit.quantum_info.Statevector.expectation_value` and
:meth:`qiskit.quantum_info.DensityMatrix.expectation_value` when the
argument operator is a :class:`~qiskit.quantum_info.Pauli` or
:class:`~qiskit.quantum_info.SparsePauliOp` operator.