Add pauli() accessor to PauliProductMeasurement #15469
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Add a public accessor method pauli() to PauliProductMeasurement to expose the underlying Pauli object that the instruction measures. This addresses issue Qiskit#15468. - Added pauli() method returning Pauli with z, x, and phase components - Added unit test test_pauli_accessor to verify accessor returns original Pauli - Added release note documenting the new feature The accessor uses the existing internal _pauli_z, _pauli_x, and _pauli_phase attributes to reconstruct the full Pauli object, maintaining compatibility with existing serialization and synthesis code paths.
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Cryoris
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Dec 23, 2025
Cryoris
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Dec 23, 2025
Co-authored-by: Julien Gacon <[email protected]>
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@Cryoris all test are passing and added your review suggestions. |
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LGTM thanks for the addition!
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Summary
Add a public accessor method
pauli()toPauliProductMeasurementto expose the underlying Pauli object measured by the instruction.Details and comments
This PR implements the feature requested in #15468 by adding a public
pauli()method to thePauliProductMeasurementclass.Implementation:
pauli() -> Paulimethod that reconstructs the Pauli product from internal z/x/phase components_pauli_z,_pauli_x,_pauli_phase)Testing:
test_pauli_accessor()unit test intest/python/circuit/library/test_ppm.pyPauliProductMeasurement(Pauli("-XZ")).pauli() == Pauli("-XZ")Documentation:
renoinreleasenotes/notes/allow-pauli-accessor-15468.yamlVerification:
Fixes #15468