62 lines
2.6 KiB
Plaintext
62 lines
2.6 KiB
Plaintext
---
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title: WatsonHamiltonian
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description: API reference for qiskit.chemistry.WatsonHamiltonian
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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.chemistry.WatsonHamiltonian
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---
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# qiskit.chemistry.WatsonHamiltonian
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<Class id="qiskit.chemistry.WatsonHamiltonian" isDedicatedPage={true} github="https://github.com/qiskit-community/qiskit-aqua/tree/stable/0.9/qiskit/chemistry/watson_hamiltonian.py" signature="WatsonHamiltonian(data, num_modes)" modifiers="class">
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Watson Hamiltonian class containing the results of a driver’s anharmonic calculation
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**Parameters**
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* **data** (`List`\[`List`\[`Union`\[`int`, `float`]]]) – Hamiltonian matrix elements
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* **num\_modes** (`int`) – number of modes
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### \_\_init\_\_
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<Function id="qiskit.chemistry.WatsonHamiltonian.__init__" signature="__init__(data, num_modes)">
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**Parameters**
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* **data** (`List`\[`List`\[`Union`\[`int`, `float`]]]) – Hamiltonian matrix elements
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* **num\_modes** (`int`) – number of modes
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</Function>
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## Methods
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| -------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------- |
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| [`__init__`](#qiskit.chemistry.WatsonHamiltonian.__init__ "qiskit.chemistry.WatsonHamiltonian.__init__")(data, num\_modes) | **type data**`List`\[`List`\[`Union`\[`int`, `float`]]] |
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## Attributes
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| ----------------------------------------------------------------------------------------------------------- | ---------------------------------------------- |
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| [`data`](#qiskit.chemistry.WatsonHamiltonian.data "qiskit.chemistry.WatsonHamiltonian.data") | Returns the matrix elements of the Hamiltonian |
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| [`num_modes`](#qiskit.chemistry.WatsonHamiltonian.num_modes "qiskit.chemistry.WatsonHamiltonian.num_modes") | Returns the number of modes |
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### data
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<Attribute id="qiskit.chemistry.WatsonHamiltonian.data">
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Returns the matrix elements of the Hamiltonian
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**Return type**
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`List`\[`List`\[`Union`\[`int`, `float`]]]
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</Attribute>
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### num\_modes
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<Attribute id="qiskit.chemistry.WatsonHamiltonian.num_modes">
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Returns the number of modes
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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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