39 lines
1.8 KiB
Plaintext
39 lines
1.8 KiB
Plaintext
---
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title: approximate_noise_model
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description: API reference for qiskit.providers.aer.utils.approximate_noise_model
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in_page_toc_min_heading_level: 1
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python_api_type: function
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python_api_name: qiskit.providers.aer.utils.approximate_noise_model
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---
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# qiskit.providers.aer.utils.approximate\_noise\_model
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<Function id="qiskit.providers.aer.utils.approximate_noise_model" isDedicatedPage={true} github="https://github.com/qiskit/qiskit-aer/tree/stable/0.9/qiskit/providers/aer/utils/noise_transformation.py" signature="approximate_noise_model(model, *, operator_string=None, operator_dict=None, operator_list=None)">
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Return an approximate noise model.
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**Parameters**
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* **model** ([*NoiseModel*](qiskit.providers.aer.noise.NoiseModel "qiskit.providers.aer.noise.NoiseModel")) – the noise model to be approximated.
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* **operator\_string** (*string or None*) – a name for a pre-made set of building blocks for the output channel (Default: None).
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* **operator\_dict** (*dict or None*) – a dictionary whose values are the building blocks for the output channel (Default: None).
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* **operator\_list** (*dict or None*) – list of building blocks for the output channel (Default: None).
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**Returns**
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the approximate noise model.
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**Return type**
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[NoiseModel](qiskit.providers.aer.noise.NoiseModel "qiskit.providers.aer.noise.NoiseModel")
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**Raises**
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* **NoiseError** – if number of qubits is not supported or approximation
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* **failed.** –
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## Additional Information:
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The operator input precedence is: `list` \< `dict` \< `str`. If a string is given, dict is overwritten; if a dict is given, list is overwritten. Oossible values for string are `'pauli'`, `'reset'`, `'clifford'`. For further information see `NoiseTransformer.named_operators()`.
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</Function>
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