54 lines
2.7 KiB
Plaintext
54 lines
2.7 KiB
Plaintext
---
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title: ZneOptions
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description: API reference for qiskit_ibm_runtime.options.ZneOptions
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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_ibm_runtime.options.ZneOptions
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---
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# ZneOptions
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<Class id="qiskit_ibm_runtime.options.ZneOptions" isDedicatedPage={true} github="https://github.com/Qiskit/qiskit-ibm-runtime/tree/stable/0.25/qiskit_ibm_runtime/options/zne_options.py#L35-L116" signature="ZneOptions(*args, **kwargs)" modifiers="class">
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Zero noise extrapolation mitigation options. This is only used by V2 Estimator.
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**Parameters**
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* **amplifier** –
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Which technique to use for amplifying noise. One of:
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* ”gate\_folding” (default) uses 2-qubit gate folding to amplify noise. If the noise factor requires amplifying only a subset of the gates, then these gates are chosen randomly.
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* ”gate\_folding\_front” uses 2-qubit gate folding to amplify noise. If the noise factor requires amplifying only a subset of the gates, then these gates are selected from the front of the topologically ordered DAG circuit.
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* ”gate\_folding\_back” uses 2-qubit gate folding to amplify noise. If the noise factor requires amplifying only a subset of the gates, then these gates are selected from the back of the topologically ordered DAG circuit.
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* **noise\_factors** – Noise factors to use for noise amplification. Default: (1, 3, 5).
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* **extrapolator** –
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Extrapolator(s) to try (in order) for extrapolating to zero noise. One or more of:
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* ”linear”
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* ”exponential”
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* ”double\_exponential”
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* ”polynomial\_degree\_(1 \<= k \<= 7)”
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Default: (“exponential”, “linear”).
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## Attributes
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### amplifier
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<Attribute id="qiskit_ibm_runtime.options.ZneOptions.amplifier" attributeTypeHint="UnsetType | Literal['gate_folding', 'gate_folding_front', 'gate_folding_back']" attributeValue="Unset" />
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### extrapolator
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<Attribute id="qiskit_ibm_runtime.options.ZneOptions.extrapolator" attributeTypeHint="UnsetType | Literal['linear', 'exponential', 'double_exponential', 'polynomial_degree_1', 'polynomial_degree_2', 'polynomial_degree_3', 'polynomial_degree_4', 'polynomial_degree_5', 'polynomial_degree_6', 'polynomial_degree_7'] | Sequence[Literal['linear', 'exponential', 'double_exponential', 'polynomial_degree_1', 'polynomial_degree_2', 'polynomial_degree_3', 'polynomial_degree_4', 'polynomial_degree_5', 'polynomial_degree_6', 'polynomial_degree_7']]" attributeValue="Unset" />
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### noise\_factors
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<Attribute id="qiskit_ibm_runtime.options.ZneOptions.noise_factors" attributeTypeHint="UnsetType | Sequence[float]" attributeValue="Unset" />
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## Methods
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</Class>
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