121 lines
3.4 KiB
Plaintext
121 lines
3.4 KiB
Plaintext
---
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title: PermutationGate
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description: API reference for qiskit.circuit.library.PermutationGate
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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.circuit.library.PermutationGate
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---
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# PermutationGate
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<Class id="qiskit.circuit.library.PermutationGate" isDedicatedPage={true} github="https://github.com/qiskit/qiskit/tree/stable/0.24/qiskit/circuit/library/generalized_gates/permutation.py" signature="PermutationGate(pattern)" modifiers="class">
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Bases: [`Gate`](qiskit.circuit.Gate "qiskit.circuit.gate.Gate")
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A gate that permutes qubits.
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Return a permutation gate.
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**Parameters**
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**pattern** (*list\[int]*) – permutation pattern, describing which qubits occupy the positions 0, 1, 2, etc. after applying the permutation, that is `pattern[k] = m` when the permutation maps qubit `m` to position `k`. As an example, the pattern `[2, 4, 3, 0, 1]` means that qubit `2` goes to position `0`, qubit `4` goes to the position `1`, etc.
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**Raises**
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**CircuitError** – if permutation pattern is malformed.
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**Reference Circuit:**
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**Expanded Circuit:**
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## Methods Defined Here
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<span id="qiskit-circuit-library-permutationgate-inverse" />
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### inverse
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<Function id="qiskit.circuit.library.PermutationGate.inverse" signature="PermutationGate.inverse()">
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Returns the inverse of the permutation.
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</Function>
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<span id="qiskit-circuit-library-permutationgate-validate-parameter" />
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### validate\_parameter
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<Function id="qiskit.circuit.library.PermutationGate.validate_parameter" signature="PermutationGate.validate_parameter(parameter)">
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Parameter validation.
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</Function>
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## Attributes
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### condition\_bits
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<Attribute id="qiskit.circuit.library.PermutationGate.condition_bits">
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Get Clbits in condition.
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</Attribute>
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### decompositions
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<Attribute id="qiskit.circuit.library.PermutationGate.decompositions">
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Get the decompositions of the instruction from the SessionEquivalenceLibrary.
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</Attribute>
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### definition
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<Attribute id="qiskit.circuit.library.PermutationGate.definition">
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Return definition in terms of other basic gates.
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</Attribute>
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### duration
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<Attribute id="qiskit.circuit.library.PermutationGate.duration">
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Get the duration.
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</Attribute>
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### label
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<Attribute id="qiskit.circuit.library.PermutationGate.label">
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Return instruction label
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</Attribute>
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### name
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<Attribute id="qiskit.circuit.library.PermutationGate.name">
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Return the name.
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</Attribute>
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### num\_clbits
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<Attribute id="qiskit.circuit.library.PermutationGate.num_clbits">
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Return the number of clbits.
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</Attribute>
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### num\_qubits
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<Attribute id="qiskit.circuit.library.PermutationGate.num_qubits">
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Return the number of qubits.
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</Attribute>
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### params
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<Attribute id="qiskit.circuit.library.PermutationGate.params">
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return instruction params.
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</Attribute>
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### pattern
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<Attribute id="qiskit.circuit.library.PermutationGate.pattern">
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Returns the permutation pattern defining this permutation.
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</Attribute>
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### unit
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<Attribute id="qiskit.circuit.library.PermutationGate.unit">
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Get the time unit of duration.
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</Attribute>
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</Class>
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