68 lines
3.5 KiB
Plaintext
68 lines
3.5 KiB
Plaintext
---
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title: TrotterizationBase (v0.26)
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description: API reference for qiskit.aqua.operators.evolutions.TrotterizationBase in qiskit v0.26
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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.aqua.operators.evolutions.TrotterizationBase
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---
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<span id="qiskit-aqua-operators-evolutions-trotterizationbase" />
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# qiskit.aqua.operators.evolutions.TrotterizationBase
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<Class id="qiskit.aqua.operators.evolutions.TrotterizationBase" isDedicatedPage={true} github="https://github.com/qiskit-community/qiskit-aqua/tree/stable/0.9/qiskit/aqua/operators/evolutions/trotterizations/trotterization_base.py" signature="TrotterizationBase(reps=1)" modifiers="class">
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A base for Trotterization methods, algorithms for approximating exponentiations of operator sums by compositions of exponentiations.
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### \_\_init\_\_
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<Function id="qiskit.aqua.operators.evolutions.TrotterizationBase.__init__" signature="__init__(reps=1)">
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Initialize self. See help(type(self)) for accurate signature.
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</Function>
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## Methods
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| --------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------- |
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| [`__init__`](#qiskit.aqua.operators.evolutions.TrotterizationBase.__init__ "qiskit.aqua.operators.evolutions.TrotterizationBase.__init__")(\[reps]) | Initialize self. |
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| [`convert`](#qiskit.aqua.operators.evolutions.TrotterizationBase.convert "qiskit.aqua.operators.evolutions.TrotterizationBase.convert")(operator) | Convert a `SummedOp` into a `ComposedOp` or `CircuitOp` representing an approximation of e^-i\*\`\`op\_sum\`\`. |
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## Attributes
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| ------------------------------------------------------------------------------------------------------------------------------ | --------------------------------------------------------------------------------------------- |
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| [`reps`](#qiskit.aqua.operators.evolutions.TrotterizationBase.reps "qiskit.aqua.operators.evolutions.TrotterizationBase.reps") | The number of repetitions to use in the Trotterization, improving the approximation accuracy. |
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### convert
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<Function id="qiskit.aqua.operators.evolutions.TrotterizationBase.convert" signature="convert(operator)" modifiers="abstract">
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Convert a `SummedOp` into a `ComposedOp` or `CircuitOp` representing an approximation of e^-i\*\`\`op\_sum\`\`.
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**Parameters**
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**operator** (`OperatorBase`) – The `SummedOp` to evolve.
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**Return type**
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`OperatorBase`
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**Returns**
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The Operator approximating op\_sum’s evolution.
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**Raises**
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**TypeError** – A non-SummedOps Operator is passed into `convert`.
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</Function>
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### reps
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<Attribute id="qiskit.aqua.operators.evolutions.TrotterizationBase.reps">
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The number of repetitions to use in the Trotterization, improving the approximation accuracy.
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**Return type**
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`int`
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</Attribute>
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</Class>
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