53 lines
2.2 KiB
Plaintext
53 lines
2.2 KiB
Plaintext
---
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title: TrotterizationBase
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description: API reference for qiskit.opflow.evolutions.TrotterizationBase
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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.opflow.evolutions.TrotterizationBase
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---
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# TrotterizationBase
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<Class id="qiskit.opflow.evolutions.TrotterizationBase" isDedicatedPage={true} github="https://github.com/qiskit/qiskit/tree/stable/0.25/qiskit/opflow/evolutions/trotterizations/trotterization_base.py" signature="qiskit.opflow.evolutions.TrotterizationBase(reps=1)" modifiers="class">
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Bases: [`EvolutionBase`](qiskit.opflow.evolutions.EvolutionBase "qiskit.opflow.evolutions.evolution_base.EvolutionBase")
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Deprecated: A base for Trotterization methods, algorithms for approximating exponentiations of operator sums by compositions of exponentiations.
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<Admonition title="Deprecated since version 0.24.0" type="danger">
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The class `qiskit.opflow.evolutions.trotterizations.trotterization_base.TrotterizationBase` is deprecated as of qiskit-terra 0.24.0. It will be removed no earlier than 3 months after the release date. For code migration guidelines, visit [https://qisk.it/opflow\_migration](https://qisk.it/opflow_migration).
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</Admonition>
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## Attributes
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### reps
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<Attribute id="qiskit.opflow.evolutions.TrotterizationBase.reps">
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The number of repetitions to use in the Trotterization, improving the approximation accuracy.
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</Attribute>
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## Methods
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### convert
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<Function id="qiskit.opflow.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*](qiskit.opflow.OperatorBase "qiskit.opflow.operator_base.OperatorBase")) – The `SummedOp` to evolve.
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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**](https://docs.python.org/3/library/exceptions.html#TypeError "(in Python v3.12)") – A non-SummedOps Operator is passed into `convert`.
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**Return type**
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[*OperatorBase*](qiskit.opflow.OperatorBase "qiskit.opflow.operator_base.OperatorBase")
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</Function>
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</Class>
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