69 lines
2.2 KiB
Plaintext
69 lines
2.2 KiB
Plaintext
---
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title: Sampler
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description: API reference for qiskit_aer.primitives.Sampler
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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_aer.primitives.Sampler
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---
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# Sampler
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<Class id="qiskit_aer.primitives.Sampler" isDedicatedPage={true} github="https://github.com/qiskit/qiskit-aer/tree/stable/0.11/qiskit_aer/primitives/sampler.py" signature="Sampler(circuits: Iterable[QuantumCircuit] | QuantumCircuit, *args, parameters: Iterable[Iterable[Parameter]] | None = None, **kwargs)" modifiers="class">
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Bases: [`qiskit.primitives.base_sampler.BaseSampler`](qiskit.primitives.BaseSampler "qiskit.primitives.base_sampler.BaseSampler")
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Aer implementation of Sampler class.
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**Run Options**
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* **shots** (None or int) – The number of shots. If None, it calculates the probabilities exactly. Otherwise, it samples from multinomial distributions.
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* **seed** (int) – Set a fixed seed for `seed_simulator`. If shots is None, this option is ignored.
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<Admonition title="Note" type="note">
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Precedence of seeding is as follows:
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1. `seed_simulator` in runtime (i.e. in `__call__()`)
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2. `seed` in runtime (i.e. in `__call__()`)
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3. `seed_simulator` of `backend_options`.
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4. default.
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</Admonition>
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**Parameters**
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* **circuits** – Circuits to be executed.
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* **parameters** – Parameters of each of the quantum circuits. Defaults to `[circ.parameters for circ in circuits]`.
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* **backend\_options** – Options passed to AerSimulator.
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* **transpile\_options** – Options passed to transpile.
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* **skip\_transpilation** – if True, transpilation is skipped.
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## Methods
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### close
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<Function id="qiskit_aer.primitives.Sampler.close" signature="Sampler.close()">
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Close the session and free resources
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</Function>
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## Attributes
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### circuits
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<Attribute id="qiskit_aer.primitives.Sampler.circuits">
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Quantum circuits to be sampled.
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**Returns**
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The quantum circuits to be sampled.
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</Attribute>
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### parameters
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<Attribute id="qiskit_aer.primitives.Sampler.parameters">
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Parameters of quantum circuits.
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**Returns**
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List of the parameters in each quantum circuit.
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</Attribute>
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</Class>
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