182 lines
11 KiB
Plaintext
182 lines
11 KiB
Plaintext
---
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title: EigenstateResult
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description: API reference for qiskit.chemistry.results.EigenstateResult
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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.results.EigenstateResult
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---
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# qiskit.chemistry.results.EigenstateResult
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<Class id="qiskit.chemistry.results.EigenstateResult" isDedicatedPage={true} github="https://github.com/qiskit-community/qiskit-aqua/tree/stable/0.9/qiskit/chemistry/results/eigenstate_result.py" signature="EigenstateResult(a_dict=None)" modifiers="class">
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The eigenstate result interface.
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### \_\_init\_\_
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<Function id="qiskit.chemistry.results.EigenstateResult.__init__" signature="__init__(a_dict=None)">
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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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| ------------------------------------------------------------------------------------------------------------------------------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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| [`__init__`](#qiskit.chemistry.results.EigenstateResult.__init__ "qiskit.chemistry.results.EigenstateResult.__init__")(\[a\_dict]) | Initialize self. |
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| [`clear`](#qiskit.chemistry.results.EigenstateResult.clear "qiskit.chemistry.results.EigenstateResult.clear")() | **rtype**`None` |
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| [`combine`](#qiskit.chemistry.results.EigenstateResult.combine "qiskit.chemistry.results.EigenstateResult.combine")(result) | Any property from the argument that exists in the receiver is updated. |
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| `copy`() | |
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| `fromkeys`(iterable\[, value]) | |
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| [`get`](#qiskit.chemistry.results.EigenstateResult.get "qiskit.chemistry.results.EigenstateResult.get")(k\[,d]) | |
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| [`items`](#qiskit.chemistry.results.EigenstateResult.items "qiskit.chemistry.results.EigenstateResult.items")() | |
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| [`keys`](#qiskit.chemistry.results.EigenstateResult.keys "qiskit.chemistry.results.EigenstateResult.keys")() | |
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| [`pop`](#qiskit.chemistry.results.EigenstateResult.pop "qiskit.chemistry.results.EigenstateResult.pop")(key\[, default]) | If key is not found, d is returned if given, otherwise KeyError is raised. |
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| [`popitem`](#qiskit.chemistry.results.EigenstateResult.popitem "qiskit.chemistry.results.EigenstateResult.popitem")() | as a 2-tuple; but raise KeyError if D is empty. |
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| [`setdefault`](#qiskit.chemistry.results.EigenstateResult.setdefault "qiskit.chemistry.results.EigenstateResult.setdefault")(k\[,d]) | |
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| [`update`](#qiskit.chemistry.results.EigenstateResult.update "qiskit.chemistry.results.EigenstateResult.update")(\*args, \*\*kwargs) | If E present and has a .keys() method, does: for k in E: D\[k] = E\[k] If E present and lacks .keys() method, does: for (k, v) in E: D\[k] = v In either case, this is followed by: for k, v in F.items(): D\[k] = v |
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| [`values`](#qiskit.chemistry.results.EigenstateResult.values "qiskit.chemistry.results.EigenstateResult.values")() | |
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## Attributes
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| ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------- |
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| [`aux_operator_eigenvalues`](#qiskit.chemistry.results.EigenstateResult.aux_operator_eigenvalues "qiskit.chemistry.results.EigenstateResult.aux_operator_eigenvalues") | return aux operator eigen values |
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| [`eigenenergies`](#qiskit.chemistry.results.EigenstateResult.eigenenergies "qiskit.chemistry.results.EigenstateResult.eigenenergies") | returns eigen energies |
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| [`eigenstates`](#qiskit.chemistry.results.EigenstateResult.eigenstates "qiskit.chemistry.results.EigenstateResult.eigenstates") | returns eigen states |
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| [`groundenergy`](#qiskit.chemistry.results.EigenstateResult.groundenergy "qiskit.chemistry.results.EigenstateResult.groundenergy") | returns ground energy |
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| [`groundstate`](#qiskit.chemistry.results.EigenstateResult.groundstate "qiskit.chemistry.results.EigenstateResult.groundstate") | returns ground state |
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| [`raw_result`](#qiskit.chemistry.results.EigenstateResult.raw_result "qiskit.chemistry.results.EigenstateResult.raw_result") | Returns the raw algorithm result. |
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### aux\_operator\_eigenvalues
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<Attribute id="qiskit.chemistry.results.EigenstateResult.aux_operator_eigenvalues">
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return aux operator eigen values
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**Return type**
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`Optional`\[`List`\[`float`]]
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</Attribute>
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### clear
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<Function id="qiskit.chemistry.results.EigenstateResult.clear" signature="clear()">
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**Return type**
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`None`
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</Function>
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### combine
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<Function id="qiskit.chemistry.results.EigenstateResult.combine" signature="combine(result)">
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Any property from the argument that exists in the receiver is updated. :type result: `AlgorithmResult` :param result: Argument result with properties to be set.
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**Raises**
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**TypeError** – Argument is None
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**Return type**
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`None`
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</Function>
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### eigenenergies
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<Attribute id="qiskit.chemistry.results.EigenstateResult.eigenenergies">
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returns eigen energies
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**Return type**
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`Optional`\[`ndarray`]
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</Attribute>
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### eigenstates
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<Attribute id="qiskit.chemistry.results.EigenstateResult.eigenstates">
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returns eigen states
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**Return type**
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`Optional`\[`List`\[`Union`\[`str`, `dict`, `Result`, `list`, `ndarray`, `Statevector`, `QuantumCircuit`, `Instruction`, `OperatorBase`]]]
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</Attribute>
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### get
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<Function id="qiskit.chemistry.results.EigenstateResult.get" signature="get(k[, d]) → D[k] if k in D, else d. d defaults to None." />
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### groundenergy
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<Attribute id="qiskit.chemistry.results.EigenstateResult.groundenergy">
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returns ground energy
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**Return type**
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`Optional`\[`float`]
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</Attribute>
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### groundstate
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<Attribute id="qiskit.chemistry.results.EigenstateResult.groundstate">
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returns ground state
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**Return type**
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`Union`\[`str`, `dict`, `Result`, `list`, `ndarray`, `Statevector`, `QuantumCircuit`, `Instruction`, `OperatorBase`, `None`]
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</Attribute>
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### items
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<Function id="qiskit.chemistry.results.EigenstateResult.items" signature="items() → a set-like object providing a view on D’s items" />
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### keys
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<Function id="qiskit.chemistry.results.EigenstateResult.keys" signature="keys() → a set-like object providing a view on D’s keys" />
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### pop
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<Function id="qiskit.chemistry.results.EigenstateResult.pop" signature="pop(key, default=None)">
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If key is not found, d is returned if given, otherwise KeyError is raised.
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**Return type**
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`object`
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</Function>
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### popitem
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<Function id="qiskit.chemistry.results.EigenstateResult.popitem" signature="popitem()">
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as a 2-tuple; but raise KeyError if D is empty.
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**Return type**
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`Tuple`\[`object`, `object`]
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</Function>
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### raw\_result
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<Attribute id="qiskit.chemistry.results.EigenstateResult.raw_result">
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Returns the raw algorithm result.
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**Return type**
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`Optional`\[`AlgorithmResult`]
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</Attribute>
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### setdefault
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<Function id="qiskit.chemistry.results.EigenstateResult.setdefault" signature="setdefault(k[, d]) → D.get(k,d), also set D[k]=d if k not in D" />
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### update
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<Function id="qiskit.chemistry.results.EigenstateResult.update" signature="update(*args, **kwargs)">
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If E present and has a .keys() method, does: for k in E: D\[k] = E\[k] If E present and lacks .keys() method, does: for (k, v) in E: D\[k] = v In either case, this is followed by: for k, v in F.items(): D\[k] = v
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**Return type**
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`None`
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</Function>
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### values
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<Function id="qiskit.chemistry.results.EigenstateResult.values" signature="values() → an object providing a view on D’s values" />
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</Class>
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