Qiskit / qiskit / 8740672466

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Commit Message

Support ECR gates in `Pauli.evolve(QuantumCircuit)` (#12095)

* add _evolve_ecr()

- Adds support for Pauli (and related classes) to evolve through ECR gates encountered in a quantum circuit.
- Also moved the dicts of special-case gates (`basis_1q`, `basis_2q`, `non-clifford`) outside the subroutine definition. They are now just after the `_evolve_*()` functions they reference.

* fix pauli.evolve bug for certain circuit names

- Should fix qiskit issue #12093
- Bug happened after converting circuit to instruction, which AFAICT was not necessary. Now if input is a QuantumCircuit, that part of the code is bypassed.
- Removed creation of a look-up dict of bit locations, since `QuantumCircuit.find_bit` already provides one.

* add ECRGate to `evolve()` tests

* mark gate-dicts as private

* add test evolving by circuit named 'cx'

Test showing issue #12093 is solved.

* add release note for pauli-evolve fixes

* Update test_pauli_list.py

Run Details

22 of 34 new or added lines in 1 file covered. (64.71%)

4 existing lines in 1 file now uncovered.

60329 of 67567 relevant lines covered (89.29%)

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