274 lines
7.7 KiB
Plaintext
274 lines
7.7 KiB
Plaintext
---
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title: SetSuperOp (v0.29)
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description: API reference for qiskit.providers.aer.library.SetSuperOp in qiskit v0.29
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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.providers.aer.library.SetSuperOp
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---
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# SetSuperOp
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<Class id="qiskit.providers.aer.library.SetSuperOp" isDedicatedPage={true} github="https://github.com/qiskit/qiskit-aer/tree/stable/0.8/qiskit/providers/aer/library/set_instructions/set_superop.py" signature="SetSuperOp(state)" modifiers="class">
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Bases: `qiskit.circuit.instruction.Instruction`
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Set superop state of the simulator
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Create new instruction to set the superop simulator state.
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**Parameters**
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**state** (*QuantumChannel*) – A CPTP quantum channel.
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**Raises**
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**ExtensionError** – if the input QuantumChannel is not CPTP.
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<Admonition title="Note" type="note">
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This set instruction must always be performed on the full width of qubits in a circuit, otherwise an exception will be raised during simulation.
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</Admonition>
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## Methods
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<span id="qiskit-providers-aer-library-setsuperop-add-decomposition" />
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### add\_decomposition
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<Function id="qiskit.providers.aer.library.SetSuperOp.add_decomposition" signature="SetSuperOp.add_decomposition(decomposition)">
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Add a decomposition of the instruction to the SessionEquivalenceLibrary.
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</Function>
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<span id="qiskit-providers-aer-library-setsuperop-assemble" />
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### assemble
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<Function id="qiskit.providers.aer.library.SetSuperOp.assemble" signature="SetSuperOp.assemble()">
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Assemble a QasmQobjInstruction
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</Function>
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<span id="qiskit-providers-aer-library-setsuperop-broadcast-arguments" />
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### broadcast\_arguments
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<Function id="qiskit.providers.aer.library.SetSuperOp.broadcast_arguments" signature="SetSuperOp.broadcast_arguments(qargs, cargs)">
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Validation of the arguments.
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**Parameters**
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* **qargs** (*List*) – List of quantum bit arguments.
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* **cargs** (*List*) – List of classical bit arguments.
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**Yields**
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*Tuple(List, List)* – A tuple with single arguments.
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**Raises**
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**CircuitError** – If the input is not valid. For example, the number of arguments does not match the gate expectation.
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</Function>
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<span id="qiskit-providers-aer-library-setsuperop-c-if" />
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### c\_if
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<Function id="qiskit.providers.aer.library.SetSuperOp.c_if" signature="SetSuperOp.c_if(classical, val)">
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Add classical condition on register or cbit classical and value val.
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</Function>
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<span id="qiskit-providers-aer-library-setsuperop-copy" />
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### copy
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<Function id="qiskit.providers.aer.library.SetSuperOp.copy" signature="SetSuperOp.copy(name=None)">
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Copy of the instruction.
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**Parameters**
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**name** (*str*) – name to be given to the copied circuit, if None then the name stays the same.
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**Returns**
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**a copy of the current instruction, with the name**
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updated if it was provided
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**Return type**
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[qiskit.circuit.Instruction](qiskit.circuit.Instruction "qiskit.circuit.Instruction")
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</Function>
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<span id="qiskit-providers-aer-library-setsuperop-inverse" />
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### inverse
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<Function id="qiskit.providers.aer.library.SetSuperOp.inverse" signature="SetSuperOp.inverse()">
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Invert this instruction.
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If the instruction is composite (i.e. has a definition), then its definition will be recursively inverted.
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Special instructions inheriting from Instruction can implement their own inverse (e.g. T and Tdg, Barrier, etc.)
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**Returns**
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a fresh instruction for the inverse
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**Return type**
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[qiskit.circuit.Instruction](qiskit.circuit.Instruction "qiskit.circuit.Instruction")
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**Raises**
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**CircuitError** – if the instruction is not composite and an inverse has not been implemented for it.
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</Function>
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<span id="qiskit-providers-aer-library-setsuperop-is-parameterized" />
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### is\_parameterized
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<Function id="qiskit.providers.aer.library.SetSuperOp.is_parameterized" signature="SetSuperOp.is_parameterized()">
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Return True .IFF. instruction is parameterized else False
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</Function>
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<span id="qiskit-providers-aer-library-setsuperop-mirror" />
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### mirror
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<Function id="qiskit.providers.aer.library.SetSuperOp.mirror" signature="SetSuperOp.mirror()">
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DEPRECATED: use instruction.reverse\_ops().
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**Returns**
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**a new instruction with sub-instructions**
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reversed.
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**Return type**
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[qiskit.circuit.Instruction](qiskit.circuit.Instruction "qiskit.circuit.Instruction")
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</Function>
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<span id="qiskit-providers-aer-library-setsuperop-qasm" />
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### qasm
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<Function id="qiskit.providers.aer.library.SetSuperOp.qasm" signature="SetSuperOp.qasm()">
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Return a default OpenQASM string for the instruction.
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Derived instructions may override this to print in a different format (e.g. measure q\[0] -> c\[0];).
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</Function>
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<span id="qiskit-providers-aer-library-setsuperop-repeat" />
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### repeat
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<Function id="qiskit.providers.aer.library.SetSuperOp.repeat" signature="SetSuperOp.repeat(n)">
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Creates an instruction with gate repeated n amount of times.
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**Parameters**
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**n** (*int*) – Number of times to repeat the instruction
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**Returns**
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Containing the definition.
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**Return type**
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[qiskit.circuit.Instruction](qiskit.circuit.Instruction "qiskit.circuit.Instruction")
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**Raises**
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**CircuitError** – If n \< 1.
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</Function>
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<span id="qiskit-providers-aer-library-setsuperop-reverse-ops" />
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### reverse\_ops
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<Function id="qiskit.providers.aer.library.SetSuperOp.reverse_ops" signature="SetSuperOp.reverse_ops()">
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For a composite instruction, reverse the order of sub-instructions.
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This is done by recursively reversing all sub-instructions. It does not invert any gate.
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**Returns**
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**a new instruction with**
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sub-instructions reversed.
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**Return type**
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[qiskit.circuit.Instruction](qiskit.circuit.Instruction "qiskit.circuit.Instruction")
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</Function>
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<span id="qiskit-providers-aer-library-setsuperop-soft-compare" />
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### soft\_compare
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<Function id="qiskit.providers.aer.library.SetSuperOp.soft_compare" signature="SetSuperOp.soft_compare(other)">
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Soft comparison between gates. Their names, number of qubits, and classical bit numbers must match. The number of parameters must match. Each parameter is compared. If one is a ParameterExpression then it is not taken into account.
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**Parameters**
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**other** (*instruction*) – other instruction.
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**Returns**
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are self and other equal up to parameter expressions.
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**Return type**
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bool
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</Function>
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<span id="qiskit-providers-aer-library-setsuperop-validate-parameter" />
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### validate\_parameter
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<Function id="qiskit.providers.aer.library.SetSuperOp.validate_parameter" signature="SetSuperOp.validate_parameter(parameter)">
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Instruction parameters has no validation or normalization.
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</Function>
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## Attributes
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### decompositions
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<Attribute id="qiskit.providers.aer.library.SetSuperOp.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.providers.aer.library.SetSuperOp.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.providers.aer.library.SetSuperOp.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.providers.aer.library.SetSuperOp.label">
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Return instruction label
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**Return type**
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`str`
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</Attribute>
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### params
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<Attribute id="qiskit.providers.aer.library.SetSuperOp.params">
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return instruction params.
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</Attribute>
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### unit
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<Attribute id="qiskit.providers.aer.library.SetSuperOp.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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