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Fix wrong argument supplied to _identity_op() #9201

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merged 6 commits into from
Mar 1, 2023
Merged

Fix wrong argument supplied to _identity_op() #9201

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662cb44
Fix wrong argument supplied to _identity_op() qiskit/qiskit-terra#9197
mstnb Nov 24, 2022
9eb9fc5
Merge branch 'main' into bug-9197-fix
mstnb Dec 25, 2022
b9f2d3a
Merge remote-tracking branch 'origin/main' into mstnb-bug-9197-fix
mtreinish Mar 1, 2023
af73500
Add test case with large qubit gate
mtreinish Mar 1, 2023
cf2be87
Add release note
mtreinish Mar 1, 2023
f7b7e50
Merge branch 'main' into bug-9197-fix
mergify[bot] Mar 1, 2023
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2 changes: 1 addition & 1 deletion qiskit/circuit/commutation_checker.py
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Original file line number Diff line number Diff line change
Expand Up @@ -144,7 +144,7 @@ def commute(
# being the lowest possible indices so the identity can be tensored before it.
extra_qarg2 = num_qubits - len(qarg1)
if extra_qarg2:
id_op = _identity_op(2**extra_qarg2)
id_op = _identity_op(extra_qarg2)
operator_1 = id_op.tensor(operator_1)
op12 = operator_1.compose(operator_2, qargs=qarg2, front=False)
op21 = operator_1.compose(operator_2, qargs=qarg2, front=True)
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