openfermion.transforms.reorder

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Changes the ladder operator order of the Hamiltonian based on the provided order_function per mode index.

openfermion.transforms.reorder(
    operator, order_function, num_modes=None, reverse=False
)

Used in the notebooks

Used in the tutorials

operator SymbolicOperator

the operator that will be reordered. must be a SymbolicOperator or any type of operator that inherits from SymbolicOperator.

order_function func

a function per mode that is used to map the indexing. must have arguments mode index and num_modes.

num_modes int

default None. User can provide the number of modes assumed for the system. if None, the number of modes will be calculated based on the Operator.

reverse bool

default False. if set to True, the mode mapping is reversed. reverse = True will not revert back to original if num_modes calculated differs from original and reverted.