Unify orbital ordering of FermiHubbardModel with ElectronicEnergy…
#1245
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ialsina
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mrossinek,
stefan-woerner and
woodsp-ibm
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mrossinek
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Sep 6, 2023
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mrossinek
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mrossinek
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While I think that this change is - in principle - good as it is, you will need to address the following things before we can merge this:
- fix the currently existing unittests which should fix the CI, too
- add a release note (see
CONTRIBUTING.mdon how to do that)
And as a bonus:
- It would be nice if you could also add a new unittest which asserts that using
InterleavedQubitMapper(JordanWignerMapper())is actually reproducing the original behavior.
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Summary
This PR addresses #1224. This commit changes the orbital ordering of the
FermiHubbardModelto make it consistent with the block-ordering of theElectronicEnergyclass.Details and comments
With this change,
JordanWignerMapperproduces block encoding when mapping the second quantization hamiltonian ofFermiHubbardModel.InterleavedQubitMapperacting onJordanWignerMapperproduces interleaved encoding. See full description in the original issue.