openfermion.transforms.projection_error

Calculate the error from the project_onto_sector function.

Main aliases

openfermion.transforms.projection_error(
    operator, qubits, sectors
)

Args
`operator`	the QubitOperator to work on
`qubits`	a list of indices of qubits in operator to remove
`sectors`	for each qubit, whether to project into the 0 subspace (=1) or the 1 subspace (=-1).

Returns
`error`	the trace norm of the removed term.

Raises
`TypeError`	operator must be a QubitOperator.
`TypeError`	qubits and sector must be an array-like.
`ValueError`	If qubits and sectors have different length.
`ValueError`	If sector are not specified as 0 or 1.

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Last updated 2021-10-20 UTC.

Args