tqec.circuit.operations.measurement_map.compute_global_measurements_lookback_offsets

compute_global_measurements_lookback_offsets(measurements_record: MeasurementsRecord, measurement_map: CircuitMeasurementMap, current_moment_index: int) → list[int]

Computes, from the data in the given measurement_map, the global measurement offsets.

This method uses the global data computed in the CircuitMeasurementMap instance given as parameter to compute the measurement record indices for the current gate instance.

Parameters:

• measurements_record – the record of measurements to compute global measurements offset from.

• measurement_map – global measurement data obtained from the complete quantum circuit.

• current_moment_index – index of the moment this gate instance is found in. Used to recover the correct data from the given measurement_map.

Returns:

the computed list of global measurements lookback offsets.

Raises:

TQECException – if the global measurement offset computation fails.