PauliOp * PauliOp doesn't deduplicate the result

[jamesETsmith]

General

The PauliOp times PauliOp implementation doesn't deduplicate the final list of PauliStrings in the resulting PauliOp. For performance reasons, we add in this deduplication, for now the resulting PauliOps are still correct,

Details

See the implementation here

fast-pauli/fast_pauli/cpp/include/__pauli_op.hpp

Lines 237 to 238 in c7c0a71

	friend PauliOp<T, H> operator*(PauliOp<T, H> const &lhs, PauliOp<T, H> const &rhs)
	{