quantumlib
Occupation number representation of LinearOperators
Filing for discussion and implementation tracking of occupation basis representation for the LinearOperator introduced in #1299, see the PR for context.
Rationale: Hamiltonians used in quantum simulation applications tend to have an efficient representation in this basis
Caveats: The above suggests that LinearOperator with this representation should not automatically compute its standard or Pauli basis expansions.
If we go down this direction it seems like we should consider it as part of a generic addition of support for basis expansions outside of the pauli basis (all hail the hegemony of the Pauli matrices!)
This is probably more relevant to application specific libraries like OpenFermion or Qualtran. Let's close this one and reopen in a different repo. This is also not a high priority for Cirq right now.
