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Workflow utilities for sampling and measurement collection.
Modules
collector module
observable_grouping module
observable_measurement module
observable_measurement_data module
observable_readout_calibration module
observable_settings module
pauli_sum_collector module
sampler module: Abstract base class for things sampling quantum circuits.
zeros_sampler module
Classes
class BitstringAccumulator: A mutable container of bitstrings and associated metadata populated
class CircuitSampleJob: Describes a sampling task.
class Collector: Collects data from a sampler, in parallel, towards some purpose.
class InitObsSetting: A pair of initial state and observable.
class ObservableMeasuredResult: The result of an observable measurement.
class PauliSumCollector: Estimates the energy of a linear combination of Pauli observables.
class RepetitionsStoppingCriteria: Stop sampling when the number of repetitions has been reached.
class Sampler: Something capable of sampling quantum circuits. Simulator or hardware.
class VarianceStoppingCriteria: Stop sampling when average variance per term drops below a variance bound.
class ZerosSampler: A dummy sampler for testing. Immediately returns zeroes.
Functions
flatten_grouped_results(...): Flatten results from a collection of BitstringAccumulators into a list
group_settings_greedy(...): Greedily group settings which can be simultaneously measured.
measure_grouped_settings(...): Measure a suite of grouped InitObsSetting settings.
observables_to_settings(...): Transform an observable to an InitObsSetting initialized in the