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openfermion.transforms.reverse_jordan_wigner

Transforms a QubitOperator into a FermionOperator using the Jordan-Wigner transform.

Main aliases

openfermion.transforms.reverse_jordan_wigner(
    qubit_operator, n_qubits=None
)

Used in the tutorials
Introduction to OpenFermion

Operators are mapped as follows:

\[ Z_j -> I - 2 a^\dagger_j a_j X_j -> (a^\dagger_j + a_j) Z_{j-1} Z_{j-2} .. Z_0 Y_j -> i (a^\dagger_j - a_j) Z_{j-1} Z_{j-2} .. Z_0 \]

Args
`qubit_operator`	the QubitOperator to be transformed.
`n_qubits`	the number of qubits term acts on. If not set, defaults to the maximum qubit number acted on by term.

Returns
`transformed_term`	An instance of the FermionOperator class.

Raises
`TypeError`	Input must be a QubitOperator.
`TypeError`	Invalid number of qubits specified.
`TypeError`	Pauli operators must be X, Y or Z.

Args