Fix circuit ordering in InterleavedRB #1191
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I think the circuit order can be an experiment option defaulting to RIRIRI that can be optionally set upon experiment instantiation as well, what do you think? |
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That makes sense to me. BTW. I'm understanding Qiskit Experiments has a convention that all experiment options can be set upon experiment instantiation. Is it correct? |
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This looks good to me, thanks! The current convention is that options can be and are usually set upon instantiation, but it might be worth formalizing the rules on when exactly options (and the backend) can be specified with the planned refactoring of the workflow.
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### Summary Changes the ordering of circuits generated by `InterleavedRB` back to RIRIRI (R: Reference, I: Interleaved) order. It was accidentally changed into RRRIII order in #898. Before that, it had been RIRIRI order. ### Details and comments This change may slightly alter the impact of noise on IRB results. RIRIRI ordering is preferable in the sense that it minimizes the impact of drift or noise fluctuations. Note that `InterleavedRBAnalysis` is not changed that means it works correctly regardless of the circuit ordering because it processes data relying on "interleaved" flag in circuit metadata. This commit also adds a new experiment option `circuit_order` to `InterleavedRB`. It enables to change the order of the reference and the interleaved circuits and hence slightly alter the impact of noise on interleaved RB results. The default value is set to `"RIRIRI"`. (cherry picked from commit c6753f3)
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Summary
Changes the ordering of circuits generated by
InterleavedRBback to RIRIRI (R: Reference, I: Interleaved) order. It was accidentally changed into RRRIII order in #898. Before that, it had been RIRIRI order.Details and comments
This change may slightly alter the impact of noise on IRB results. RIRIRI ordering is preferable in the sense that it minimizes the impact of drift or noise fluctuations. Note that
InterleavedRBAnalysisis not changed that means it works correctly regardless of the circuit ordering because it processes data relying on "interleaved" flag in circuit metadata.This commit also adds a new experiment option
circuit_ordertoInterleavedRB. It enables to change the order of the reference and the interleaved circuits and hence slightly alter the impact of noise on interleaved RB results. The default value is set to"RIRIRI".