Add marginal distribution routines #120
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nonhermitian
changed the title
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On hold for next Qiskit release, to make use of the rust version of the marginals |
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Ok, this is now using the Qiskit version of |
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For low-weight operators it is more efficient to marginalize the input distribution (counts) over those qubits with non-identity operators only. This gives a much smaller state space over which to mitigate and makes things much faster.
This PR adds routines for marginalizing distributions given indices or operators as strings. Optionally a qubit to bit mapping can be passed, which will also be marginalized so that it can be directly used in
apply_correction