30 lines
896 B
Plaintext
30 lines
896 B
Plaintext
---
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title: random_unitary
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description: API reference for qiskit.quantum_info.random_unitary
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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.quantum_info.random_unitary
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---
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# qiskit.quantum\_info.random\_unitary
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<Function id="qiskit.quantum_info.random_unitary" isDedicatedPage={true} github="https://github.com/qiskit/qiskit/tree/stable/0.19/qiskit/quantum_info/operators/random.py" signature="random_unitary(dims, seed=None)">
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Return a random unitary Operator.
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The operator is sampled from the unitary Haar measure.
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**Parameters**
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* **dims** (*int or tuple*) – the input dimensions of the Operator.
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* **seed** (*int or np.random.Generator*) – Optional. Set a fixed seed or generator for RNG.
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**Returns**
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a unitary operator.
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**Return type**
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[Operator](qiskit.quantum_info.Operator "qiskit.quantum_info.Operator")
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</Function>
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