Mapping bravyi_kitaev vs jordan_wigner - molecular Hamiltonian
I run the code from the following tutorial:
without any changes, except for setting the mapping explicitly to bravyi_kitaev instead of the default one which I assume is jordan_wigner.
After this minor change I get at the end of the VQE result that is numerically not accurate.
The same happens (change to bravyi_kitaev does not allow to reproduce correct numerical results) when I run the code from the Usage Details section from this link:
https://pennylane.readthedocs.io/en/stable/code/api/pennylane.kUpCCGSD.html
Is it an internal pennylane issue or is it just that bravyi kitaev for some reason performs worse for chemistry VQE than jordan wigner?