Fix of eval_observables() when quantum_circuit is a StateFn. #7863
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StateFn(StateFn()) actually returns an OperatorStateFn. This caused an issue that was not checked by the test cases test_aux_ops_evaluator.py. The associated test case was added.
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Changelog: Bugfix
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Co-authored-by: Julien Gacon <[email protected]>
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* Fix the eval_observables() when quantum_state is StateFn. StateFn(StateFn()) actually returns an OperatorStateFn. This caused an issue that was not checked by the test cases test_aux_ops_evaluator.py. The associated test case was added. * Add the associated releasenote * Update releasenotes/notes/fix-aux-ops-evaluator-83ce1606d1ad19b3.yaml Co-authored-by: Julien Gacon <[email protected]> * Fix sphinx identifier Co-authored-by: Julien Gacon <[email protected]> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> (cherry picked from commit a296ca0)
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…7881) * Fix the eval_observables() when quantum_state is StateFn. StateFn(StateFn()) actually returns an OperatorStateFn. This caused an issue that was not checked by the test cases test_aux_ops_evaluator.py. The associated test case was added. * Add the associated releasenote * Update releasenotes/notes/fix-aux-ops-evaluator-83ce1606d1ad19b3.yaml Co-authored-by: Julien Gacon <[email protected]> * Fix sphinx identifier Co-authored-by: Julien Gacon <[email protected]> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> (cherry picked from commit a296ca0) Co-authored-by: Anthony-Gandon <[email protected]>
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…7863) * Fix the eval_observables() when quantum_state is StateFn. StateFn(StateFn()) actually returns an OperatorStateFn. This caused an issue that was not checked by the test cases test_aux_ops_evaluator.py. The associated test case was added. * Add the associated releasenote * Update releasenotes/notes/fix-aux-ops-evaluator-83ce1606d1ad19b3.yaml Co-authored-by: Julien Gacon <[email protected]> * Fix sphinx identifier Co-authored-by: Julien Gacon <[email protected]> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
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…qiskit#7863) * Fix the eval_observables() when quantum_state is StateFn. StateFn(StateFn()) actually returns an OperatorStateFn. This caused an issue that was not checked by the test cases test_aux_ops_evaluator.py. The associated test case was added. * Add the associated releasenote * Update releasenotes/notes/fix-aux-ops-evaluator-83ce1606d1ad19b3.yaml Co-authored-by: Julien Gacon <[email protected]> * Fix sphinx identifier Co-authored-by: Julien Gacon <[email protected]> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
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Summary
StateFn(StateFn()) actually returns an OperatorStateFn.
This caused an error in _prepare_list_op that was not checked by the test cases in test_aux_ops_evaluator.py.
The associated test case was added.
Previous error message: