65 lines
2.5 KiB
Plaintext
65 lines
2.5 KiB
Plaintext
---
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title: CollectCliffords
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description: API reference for qiskit.transpiler.passes.CollectCliffords
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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.transpiler.passes.CollectCliffords
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---
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# CollectCliffords
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<Class id="qiskit.transpiler.passes.CollectCliffords" isDedicatedPage={true} github="https://github.com/qiskit/qiskit/tree/stable/0.23/qiskit/transpiler/passes/optimization/collect_cliffords.py" signature="CollectCliffords(*args, **kwargs)" modifiers="class">
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Bases: [`qiskit.transpiler.passes.optimization.collect_and_collapse.CollectAndCollapse`](qiskit.transpiler.passes.CollectAndCollapse "qiskit.transpiler.passes.optimization.collect_and_collapse.CollectAndCollapse")
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Collects blocks of Clifford gates and replaces them by a [`Clifford`](qiskit.quantum_info.Clifford "qiskit.quantum_info.Clifford") object.
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CollectCliffords initializer.
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**Parameters**
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* **do\_commutative\_analysis** (*bool*) – if True, exploits commutativity relations between nodes.
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* **split\_blocks** (*bool*) – if True, splits collected blocks into sub-blocks over disjoint qubit subsets.
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* **min\_block\_size** (*int*) – specifies the minimum number of gates in the block for the block to be collected.
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## Methods
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### name
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<Function id="qiskit.transpiler.passes.CollectCliffords.name" signature="CollectCliffords.name()">
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Return the name of the pass.
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</Function>
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### run
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<Function id="qiskit.transpiler.passes.CollectCliffords.run" signature="CollectCliffords.run(dag)">
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Run the CollectLinearFunctions pass on dag. :param dag: the DAG to be optimized. :type dag: DAGCircuit
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**Returns**
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the optimized DAG.
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**Return type**
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[DAGCircuit](qiskit.dagcircuit.DAGCircuit "qiskit.dagcircuit.DAGCircuit")
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</Function>
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## Attributes
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### is\_analysis\_pass
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<Attribute id="qiskit.transpiler.passes.CollectCliffords.is_analysis_pass">
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Check if the pass is an analysis pass.
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If the pass is an AnalysisPass, that means that the pass can analyze the DAG and write the results of that analysis in the property set. Modifications on the DAG are not allowed by this kind of pass.
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</Attribute>
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### is\_transformation\_pass
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<Attribute id="qiskit.transpiler.passes.CollectCliffords.is_transformation_pass">
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Check if the pass is a transformation pass.
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If the pass is a TransformationPass, that means that the pass can manipulate the DAG, but cannot modify the property set (but it can be read).
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</Attribute>
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</Class>
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