quchip.engine.approximations

Engine-side operations owned by explicit approximation strategies.

Functions

apply_operator_band_filter(...)	Return the populated two-body bands accepted by keeps_band.
resolve_drive_program(approximation, ...[, ...])	Combine one authored signal with its operator-frame phase.

quchip.engine.approximations.apply_operator_band_filter(local_hamiltonian, *, dims, labels, keeps_band, backend)

Return the populated two-body bands accepted by keeps_band.

Parameters:

• local_hamiltonian (Operator)

• dims (tuple[int, int])

• labels (tuple[str, str])

• keeps_band (BandPredicate)

• backend (Backend)

Return type:

Operator | None

quchip.engine.approximations.resolve_drive_program(approximation, program, *, weight, frame_frequency, has_carrier, filter_signal_bands=None)

Combine one authored signal with its operator-frame phase.

Parameters:

• approximation (Approximation)

• program (SignalNode)

• weight (int)

• frame_frequency (Any)

• has_carrier (bool)

• filter_signal_bands (bool | None)

Return type:

SignalNode