150 lines
4.5 KiB
Plaintext
150 lines
4.5 KiB
Plaintext
---
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title: FakeJohannesburg
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description: API reference for qiskit.providers.fake_provider.FakeJohannesburg
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in_page_toc_min_heading_level: 1
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python_api_type: class
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python_api_name: qiskit.providers.fake_provider.FakeJohannesburg
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---
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# FakeJohannesburg
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<Class id="qiskit.providers.fake_provider.FakeJohannesburg" isDedicatedPage={true} github="https://github.com/qiskit/qiskit/tree/stable/0.22/qiskit/providers/fake_provider/backends/johannesburg/fake_johannesburg.py" signature="FakeJohannesburg" modifiers="class">
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Bases: `qiskit.providers.fake_provider.fake_qasm_backend.FakeQasmBackend`
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A fake Johannesburg backend.
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```python
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00 ↔ 01 ↔ 02 ↔ 03 ↔ 04
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↕ ↕
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05 ↔ 06 ↔ 07 ↔ 08 ↔ 09
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↕ ↕ ↕
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10 ↔ 11 ↔ 12 ↔ 13 ↔ 14
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↕ ↕
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15 ↔ 16 ↔ 17 ↔ 18 ↔ 19
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```
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FakeBackend initializer.
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**Parameters**
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* **configuration** ([*BackendConfiguration*](qiskit.providers.models.BackendConfiguration "qiskit.providers.models.BackendConfiguration")) – backend configuration
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* **time\_alive** (*int*) – time to wait before returning result
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## Methods
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### configuration
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<Function id="qiskit.providers.fake_provider.FakeJohannesburg.configuration" signature="FakeJohannesburg.configuration()">
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Return the backend configuration.
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**Returns**
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the configuration for the backend.
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**Return type**
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[BackendConfiguration](qiskit.providers.models.BackendConfiguration "qiskit.providers.models.BackendConfiguration")
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</Function>
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### name
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<Function id="qiskit.providers.fake_provider.FakeJohannesburg.name" signature="FakeJohannesburg.name()">
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Return the backend name.
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**Returns**
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the name of the backend.
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**Return type**
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str
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</Function>
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### properties
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<Function id="qiskit.providers.fake_provider.FakeJohannesburg.properties" signature="FakeJohannesburg.properties()">
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Returns a snapshot of device properties
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</Function>
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### provider
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<Function id="qiskit.providers.fake_provider.FakeJohannesburg.provider" signature="FakeJohannesburg.provider()">
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Return the backend Provider.
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**Returns**
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the Provider responsible for the backend.
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**Return type**
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[Provider](qiskit.providers.Provider "qiskit.providers.Provider")
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</Function>
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### run
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<Function id="qiskit.providers.fake_provider.FakeJohannesburg.run" signature="FakeJohannesburg.run(run_input, **kwargs)">
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Main job in simulator
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</Function>
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### set\_options
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<Function id="qiskit.providers.fake_provider.FakeJohannesburg.set_options" signature="FakeJohannesburg.set_options(**fields)">
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Set the options fields for the backend
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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.
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**Parameters**
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**fields** – The fields to update the options
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**Raises**
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**AttributeError** – If the field passed in is not part of the options
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</Function>
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### status
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<Function id="qiskit.providers.fake_provider.FakeJohannesburg.status" signature="FakeJohannesburg.status()">
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Return the backend status.
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**Returns**
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the status of the backend.
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**Return type**
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[BackendStatus](qiskit.providers.models.BackendStatus "qiskit.providers.models.BackendStatus")
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</Function>
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## Attributes
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### backend\_name
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<Attribute id="qiskit.providers.fake_provider.FakeJohannesburg.backend_name" attributeValue="'fake_johannesburg'" />
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### conf\_filename
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<Attribute id="qiskit.providers.fake_provider.FakeJohannesburg.conf_filename" attributeValue="'conf_johannesburg.json'" />
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### dirname
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<Attribute id="qiskit.providers.fake_provider.FakeJohannesburg.dirname" attributeValue="'/home/runner/work/qiskit/qiskit/.tox/docs/lib/python3.8/site-packages/qiskit/providers/fake_provider/backends/johannesburg'" />
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### options
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<Attribute id="qiskit.providers.fake_provider.FakeJohannesburg.options">
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Return the options for the backend
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The options of a backend are the dynamic parameters defining how the backend is used. These are used to control the [`run()`](qiskit.providers.fake_provider.FakeJohannesburg#run "qiskit.providers.fake_provider.FakeJohannesburg.run") method.
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</Attribute>
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### props\_filename
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<Attribute id="qiskit.providers.fake_provider.FakeJohannesburg.props_filename" attributeValue="'props_johannesburg.json'" />
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### version
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<Attribute id="qiskit.providers.fake_provider.FakeJohannesburg.version" attributeValue="1" />
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</Class>
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