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An idle qubit should still be considered idle even if it has a barrier #621

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garrison opened this issue Jun 7, 2024 · 0 comments · May be fixed by #639
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An idle qubit should still be considered idle even if it has a barrier #621

garrison opened this issue Jun 7, 2024 · 0 comments · May be fixed by #639
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bug Something isn't working cutting QPD-based circuit cutting code good first issue Good for newcomers

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garrison commented Jun 7, 2024

I noticed in the fragment of code for identifying idle qubits that it will identify a qubit as non-idle if it has a barrier, even if nothing else is on it:

https://github.com/Qiskit-Extensions/circuit-knitting-toolbox/blob/67f24cb4e8e067eebad1f351ce971df8dc115f61/circuit_knitting/utils/transforms.py#L170-L177

This is in contrast to the proposed similar method in Qiskit/qiskit#12470.
@garrison garrison changed the title An idle qubit is still idle even if it has a barrier An idle qubit should still be considered idle even if it has a barrier Jun 7, 2024
@garrison garrison added good first issue Good for newcomers bug Something isn't working cutting QPD-based circuit cutting code labels Jun 7, 2024
@sbrandhsn sbrandhsn mentioned this issue Jun 17, 2024
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@raunakkumarsingh raunakkumarsingh linked a pull request Jul 16, 2024 that will close this issue
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Fix idle qubit detection to ignore barriers raunakkumarsingh/circuit-knitting-toolbox
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