FakeLondonV2#

class qiskit.providers.fake_provider.FakeLondonV2[소스]#

기반 클래스: FakeBackendV2

A fake 5 qubit backend.

FakeBackendV2 initializer.

Attributes

backend_name = 'fake_london'#

conf_filename = 'conf_london.json'#

coupling_map#: Return the CouplingMap object

defs_filename = None#

dirname = '/opt/hostedtoolcache/Python/3.8.18/x64/lib/python3.8/site-packages/qiskit/providers/fake_provider/backends/london'#

dt#

Return the system time resolution of input signals

This is required to be implemented if the backend supports Pulse scheduling.

반환:: The input signal timestep in seconds. If the backend doesn’t define dt None will be returned
반환 형식:: dt

dtm#

Return the system time resolution of output signals

반환:: The output signal timestep in seconds.
반환 형식:: dtm

instruction_durations#: Return the InstructionDurations object.

instruction_schedule_map#: Return the InstructionScheduleMap for the instructions defined in this backend’s target.

instructions#: A list of Instruction tuples on the backend of the form (instruction, (qubits)

max_circuits#

meas_map#

Return the grouping of measurements which are multiplexed This is required to be implemented if the backend supports Pulse scheduling.

반환:: The grouping of measurements which are multiplexed
반환 형식:: meas_map

num_qubits#: Return the number of qubits the backend has.

operation_names#: A list of instruction names that the backend supports.

operations#: A list of Instruction instances that the backend supports.

options#

Return the options for the backend

The options of a backend are the dynamic parameters defining how the backend is used. These are used to control the run() method.

props_filename = 'props_london.json'#

provider#

Return the backend Provider.

반환:: the Provider responsible for the backend.
반환 형식:: Provider

target#

A qiskit.transpiler.Target object for the backend.

반환 형식:: Target

version = 2#

Methods

acquire_channel(qubit)#

Return the acquisition channel for the given qubit.

This is required to be implemented if the backend supports Pulse scheduling.

반환:: The Qubit measurement acquisition line.
반환 형식:: AcquireChannel

control_channel(qubits)#

Return the secondary drive channel for the given qubit

This is typically utilized for controlling multiqubit interactions. This channel is derived from other channels.

This is required to be implemented if the backend supports Pulse scheduling.

매개변수:: qubits (Iterable[int]) – Tuple or list of qubits of the form (control_qubit, target_qubit).
반환:: The multi qubit control line.
반환 형식:: List[ControlChannel]

drive_channel(qubit)#

Return the drive channel for the given qubit.

This is required to be implemented if the backend supports Pulse scheduling.

반환:: The Qubit drive channel
반환 형식:: DriveChannel

measure_channel(qubit)#

Return the measure stimulus channel for the given qubit.

This is required to be implemented if the backend supports Pulse scheduling.

반환:: The Qubit measurement stimulus line
반환 형식:: MeasureChannel

qubit_properties(qubit)#

Return QubitProperties for a given qubit.

If there are no defined or the backend doesn’t support querying these details this method does not need to be implemented.

매개변수:: qubit (int | List[int]) – The qubit to get the QubitProperties object for. This can be a single integer for 1 qubit or a list of qubits and a list of QubitProperties objects will be returned in the same order
반환:: The QubitProperties object for the specified qubit. If a list of qubits is provided a list will be returned. If properties are missing for a qubit this can be None.
반환 형식:: qubit_properties
예외 발생:: NotImplementedError – if the backend doesn’t support querying the qubit properties

run(run_input, **options)#

Run on the fake backend using a simulator.

This method runs circuit jobs (an individual or a list of QuantumCircuit ) and pulse jobs (an individual or a list of Schedule or ScheduleBlock) using BasicAer or Aer simulator and returns a Job object.

If qiskit-aer is installed, jobs will be run using AerSimulator with noise model of the fake backend. Otherwise, jobs will be run using BasicAer simulator without noise.

Currently noisy simulation of a pulse job is not supported yet in FakeBackendV2.

매개변수:

run_input (QuantumCircuit or Schedule or ScheduleBlock or list) – An individual or a list of ScheduleBlock, or Schedule objects to run on the backend.
options – Any kwarg options to pass to the backend for running the config. If a key is also present in the options attribute/object then the expectation is that the value specified will be used instead of what’s set in the options object.

반환:

The job object for the run

반환 형식:

Job

예외 발생:

QiskitError – If a pulse job is supplied and qiskit-aer is not
installed. –

set_options(**fields)#

Set the options fields for the backend

This method is used to update the options of a backend. If you need to change any of the options prior to running just pass in the kwarg with the new value for the options.

매개변수:: fields – The fields to update the options
예외 발생:: AttributeError – If the field passed in is not part of the options