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Fake20QV1

class qiskit.providers.fake_provider.Fake20QV1

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Bases: FakeQasmBackend

A fake backend with the following characteristics:

  • num_qubits: 20

  • coupling_map:

    00 ↔ 01 ↔ 02 ↔ 03 ↔ 04
          ↕         ↕
    05 ↔ 06 ↔ 07 ↔ 08 ↔ 09
     ↕         ↕         ↕
    10 ↔ 11 ↔ 12 ↔ 13 ↔ 14
          ↕         ↕
    15 ↔ 16 ↔ 17 ↔ 18 ↔ 19
  • basis_gates: ["id", "u1", "u2", "u3", "cx"]

FakeBackend initializer.

Deprecated since version 1.2

The class qiskit.providers.fake_provider.fake_backend.FakeBackend is deprecated as of qiskit 1.2. It will be removed in the 2.0 release. Fake backends using BackendV1 are deprecated in favor of GenericBackendV2. You can convert BackendV1 to BackendV2 with BackendV2Converter.

Parameters

  • configuration (BackendConfiguration) – backend configuration
  • time_alive (int) – time to wait before returning result

Attributes

backend_name

Default value: 'fake_20q_v1'

conf_filename

Default value: 'conf_singapore.json'

dirname

Default value: '/home/runner/work/qiskit/qiskit/.tox/docs/lib/python3.9/site-packages/qiskit/providers/fake_provider/backends_v1/fake_20q'

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

Default value: 'props_singapore.json'

version

Default value: 1


Methods

configuration

configuration()

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Return the backend configuration.

Returns

the configuration for the backend.

Return type

BackendConfiguration

name

name()

GitHub

Return the backend name.

Returns

the name of the backend.

Return type

str

properties

properties()

GitHub

Returns a snapshot of device properties

provider

provider()

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Return the backend Provider.

Returns

the Provider responsible for the backend.

Return type

Provider

run

run(run_input, **kwargs)

GitHub

Main job in simulator

set_options

set_options(**fields)

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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.

Parameters

fields – The fields to update the options

Raises

AttributeError – If the field passed in is not part of the options

status

status()

GitHub

Return the backend status.

Returns

the status of the backend.

Return type

BackendStatus

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