Struct PlusMinusProductWrapper

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pub struct PlusMinusProductWrapper {
    pub internal: PlusMinusProduct,
}
Expand description

PlusMinusProducts are combinations of SinglePlusMinusOperators on specific qubits.

PlusMinusProducts can be used in either noise-free or a noisy system. They are representations of products of pauli matrices acting on qubits, in order to build the terms of a hamiltonian. For instance, to represent the term :math:\sigma_0^{+} :math:\sigma_2^{+} :

PlusMinusProduct().plus(0).plus(2).

Note that these methods are setters that set the operator acting on the corresponding spin, and do not represent matrix multiplication. For example

PlusMinusProduct().plus(0).plus(0)

will set the operator on spin 0 to :math: \sigma_0^{+} and does not give the zero vector.

Returns: self: The new, empty PlusMinusProduct.

§Examples

.. code-block:: python

import numpy.testing as npt
from struqture_py.spins import PlusMinusProduct

pp = PlusMinusProduct().plus(0).minus(1).z(2)
pp = pp.set_pauli(3, "+")
npt.assert_equal(pp.get(0), "+")
npt.assert_equal(pp.keys(), [0, 1, 2, 3])

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§internal: PlusMinusProduct

Implementations§

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impl PlusMinusProductWrapper

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pub fn from_pyany(input: &Bound<'_, PyAny>) -> PyResult<PlusMinusProduct>

Fallible conversion of generic python object..

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impl PlusMinusProductWrapper

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pub fn new() -> Self

Create an empty PlusMinusProduct.

Returns: self: The new, empty PlusMinusProduct.

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pub fn plus(&self, index: usize) -> PlusMinusProductWrapper

Set a new entry for SinglePlusMinusOperator X in the internal dictionary.

Args: index (int): Index of set object.

Returns: PlusMinusProduct: The PlusMinusProduct with the new entry.

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pub fn minus(&self, index: usize) -> PlusMinusProductWrapper

Set a new entry for SinglePlusMinusOperator Y in the internal dictionary.

Args: index (int): Index of set object.

Returns: PlusMinusProduct: The PlusMinusProduct with the new entry.

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pub fn z(&self, index: usize) -> PlusMinusProductWrapper

Set a new entry for SinglePlusMinusOperator Z in the internal dictionary.

Args: index (int): Index of set object.

Returns: PlusMinusProduct: The PlusMinusProduct with the new entry.

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pub fn set_pauli(&self, index: usize, pauli: String) -> PyResult<Self>

Set a new entry in the internal_map. This function consumes self.

Args: index (int): Index of set object. pauli (str): Value of set object.

Returns: self: The entry was correctly set and the PlusMinusProduct is returned.

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pub fn from_product( value: &Bound<'_, PyAny>, ) -> PyResult<Vec<(PlusMinusProductWrapper, CalculatorComplexWrapper)>>

Creates a list of corresponding (PlusMinusProduct, CalculatorComplex) tuples from the input PauliProduct or DecoherenceProduct.

Args: value (PauliProduct or DecoherenceProduct): The input object to convert.

Returns: List[Tuple[(PlusMinusProduct, CalculatorComplex)]]: The converted input.

Raises: ValueError: Input is neither a PauliProduct nor a DecoherenceProduct.

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pub fn to_pauli_product_list( &self, ) -> Vec<(PauliProductWrapper, CalculatorComplexWrapper)>

Convert self into a list of (PauliProduct, CalculatorComplex) tuples.

Returns: List[Tuple[(PauliProduct, CalculatorComplex)]]: A list of the terms self corresponds to.

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pub fn to_decoherence_product_list( &self, ) -> Vec<(DecoherenceProductWrapper, CalculatorComplexWrapper)>

Convert self into a list of (DecoherenceProduct, CalculatorComplex) tuples.

Returns: List[Tuple[(DecoherenceProduct, CalculatorComplex)]]: A list of the terms self corresponds to.

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pub fn hermitian_conjugate(&self) -> (PlusMinusProductWrapper, f64)

Return the hermitian conjugate of self and its prefactor.

Returns: (self, float): The hermitian conjugate of self and the potential sign it has picked up.

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pub fn is_natural_hermitian(&self) -> bool

Return whether self is naturally hermitian.

For spin objects, this is true when applying the hermitian conjugation does not change the sign. For bosonic and fermionic objects, this is true when creators == annihilators. For mixed objects, this is true when all of the spin, bosonic and fermionic parts’ is_naturally_hermitian functions evaluate to true.

Returns: bool: Whether self is naturally hermitian or not.

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pub fn get(&self, index: usize) -> Option<String>

Get the pauli matrix corresponding to the index.

Args: index (int): Index of get object.

Returns: Optionalstr: The key’s corresponding value (if it exists).

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pub fn keys(&self) -> Vec<usize>

Return a list of the unsorted keys in self.

Returns: List[int]: The sequence of qubit index keys of self.

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pub fn current_number_spins(&self) -> usize

Return maximum index in self.

Returns: int: Maximum index.

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pub fn __len__(&self) -> usize

Return number of entries in object.

Returns: int: The length of the content of the object.

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pub fn is_empty(&self) -> bool

Return whether self is empty or not.

Returns: bool: Whether self is empty or not.

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pub fn remap_qubits( &self, mapping: HashMap<usize, usize>, ) -> PlusMinusProductWrapper

Remap the qubits in a new instance of self (returned).

Args: mapping (Dict[int, int]): The map containing the {qubit: qubit} mapping to use.

Returns: self: The new instance of self with the qubits remapped.

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pub fn concatenate( &self, other: PlusMinusProductWrapper, ) -> PyResult<PlusMinusProductWrapper>

Return the concatenation of two objects of type self with no overlapping qubits.

Args: other (self): The object to concatenate self with.

Returns: List[int]: A list of the corresponding creator indices.

Raises: ValueError: The two objects could not be concatenated.

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pub fn __copy__(&self) -> PlusMinusProductWrapper

Return a copy of self (copy here produces a deepcopy).

Returns: self: A deep copy of Self.

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pub fn __deepcopy__( &self, _memodict: &Bound<'_, PyAny>, ) -> PlusMinusProductWrapper

Return a deep copy of self.

Returns: self: A deep copy of Self.

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pub fn from_bincode( input: &Bound<'_, PyAny>, ) -> PyResult<PlusMinusProductWrapper>

Convert the bincode representation of the object to an instance using the bincode crate.

Args: input (bytearray): The serialized object (in bincode form).

Returns: The deserialized Spin System.

Raises: TypeError: Input cannot be converted to byte array. ValueError: Input cannot be deserialized.

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pub fn to_bincode(&self) -> PyResult<Py<PyByteArray>>

Return the bincode representation of the object using the bincode crate.

Returns: bytearray: The serialized object (in bincode form).

Raises: ValueError: Cannot serialize object to bytes.

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pub fn to_json(&self) -> PyResult<String>

Return the json representation of the object.

Returns: str: The serialized form of the object.

Raises: ValueError: Cannot serialize object to json.

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pub fn from_json(input: String) -> PyResult<PlusMinusProductWrapper>

Convert the json representation of the object to an instance.

Args: input (str): The serialized object in json form.

Returns: The deserialized object.

Raises: ValueError: Input cannot be deserialized.

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pub fn from_string(input: String) -> PyResult<PlusMinusProductWrapper>

Convert a string representation of the object to an instance.

Args: input (str): The serialized index in str representation.

Returns: self: The converted object.

Raises: ValueError: Input cannot be converted from str.

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pub fn __str__(&self) -> String

Return a string containing a printable representation of the index.

Returns: str: The printable string representation of the index.

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pub fn __repr__(&self) -> String

Return a string containing a printable representation of the index.

Returns: str: The printable string representation of the index.

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pub fn __richcmp__( &self, other: &Bound<'_, PyAny>, op: CompareOp, ) -> PyResult<bool>

Return the richcmp magic method to perform rich comparison operations on mixed index.

Args: other: The object to compare self to. op: Whether they should be equal or not.

Returns: Whether the two operations compared evaluated to True or False

Raises: NotImplementedError: Other comparison not implemented.

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pub fn __hash__(&self) -> PyResult<isize>

Return the hash magic method.

Returns: integer: Hash

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impl PlusMinusProductWrapper

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pub fn jordan_wigner(&self) -> FermionOperatorWrapper

Transform the given spin object into a fermionic object using the Jordan Wigner mapping.

Trait Implementations§

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impl Clone for PlusMinusProductWrapper

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fn clone(&self) -> PlusMinusProductWrapper

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for PlusMinusProductWrapper

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for PlusMinusProductWrapper

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fn default() -> PlusMinusProductWrapper

Returns the “default value” for a type. Read more
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impl Hash for PlusMinusProductWrapper

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl<'py> IntoPyObject<'py> for PlusMinusProductWrapper

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type Target = PlusMinusProductWrapper

The Python output type
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type Output = Bound<'py, <PlusMinusProductWrapper as IntoPyObject<'py>>::Target>

The smart pointer type to use. Read more
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type Error = PyErr

The type returned in the event of a conversion error.
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fn into_pyobject( self, py: Python<'py>, ) -> Result<<Self as IntoPyObject<'_>>::Output, <Self as IntoPyObject<'_>>::Error>

Performs the conversion.
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impl Ord for PlusMinusProductWrapper

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fn cmp(&self, other: &PlusMinusProductWrapper) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more
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impl PartialEq for PlusMinusProductWrapper

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fn eq(&self, other: &PlusMinusProductWrapper) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd for PlusMinusProductWrapper

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fn partial_cmp(&self, other: &PlusMinusProductWrapper) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl PyClass for PlusMinusProductWrapper

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type Frozen = False

Whether the pyclass is frozen. Read more
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impl PyClassImpl for PlusMinusProductWrapper

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const IS_BASETYPE: bool = false

#[pyclass(subclass)]
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const IS_SUBCLASS: bool = false

#[pyclass(extends=…)]
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const IS_MAPPING: bool = false

#[pyclass(mapping)]
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const IS_SEQUENCE: bool = false

#[pyclass(sequence)]
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const IS_IMMUTABLE_TYPE: bool = false

#[pyclass(immutable_type)]
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type BaseType = PyAny

Base class
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type ThreadChecker = SendablePyClass<PlusMinusProductWrapper>

This handles following two situations: Read more
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type Inventory = Pyo3MethodsInventoryForPlusMinusProductWrapper

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type PyClassMutability = <<PyAny as PyClassBaseType>::PyClassMutability as PyClassMutability>::MutableChild

Immutable or mutable
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type Dict = PyClassDummySlot

Specify this class has #[pyclass(dict)] or not.
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type WeakRef = PyClassDummySlot

Specify this class has #[pyclass(weakref)] or not.
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type BaseNativeType = PyAny

The closest native ancestor. This is PyAny by default, and when you declare #[pyclass(extends=PyDict)], it’s PyDict.
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fn items_iter() -> PyClassItemsIter

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fn doc(py: Python<'_>) -> PyResult<&'static CStr>

Rendered class doc
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fn lazy_type_object() -> &'static LazyTypeObject<Self>

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fn dict_offset() -> Option<isize>

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fn weaklist_offset() -> Option<isize>

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impl PyClassNewTextSignature<PlusMinusProductWrapper> for PyClassImplCollector<PlusMinusProductWrapper>

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fn new_text_signature(self) -> Option<&'static str>

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impl<'a, 'py> PyFunctionArgument<'a, 'py, false> for &'a PlusMinusProductWrapper

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type Holder = Option<PyRef<'py, PlusMinusProductWrapper>>

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fn extract( obj: &'a Bound<'py, PyAny>, holder: &'a mut Self::Holder, ) -> PyResult<Self>

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impl<'a, 'py> PyFunctionArgument<'a, 'py, false> for &'a mut PlusMinusProductWrapper

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type Holder = Option<PyRefMut<'py, PlusMinusProductWrapper>>

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fn extract( obj: &'a Bound<'py, PyAny>, holder: &'a mut Self::Holder, ) -> PyResult<Self>

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impl PyTypeInfo for PlusMinusProductWrapper

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const NAME: &'static str = "PlusMinusProduct"

Class name.
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const MODULE: Option<&'static str>

Module name, if any.
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fn type_object_raw(py: Python<'_>) -> *mut PyTypeObject

Returns the PyTypeObject instance for this type.
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fn type_object(py: Python<'_>) -> Bound<'_, PyType>

Returns the safe abstraction over the type object.
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fn is_type_of(object: &Bound<'_, PyAny>) -> bool

Checks if object is an instance of this type or a subclass of this type.
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fn is_exact_type_of(object: &Bound<'_, PyAny>) -> bool

Checks if object is an instance of this type.
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impl DerefToPyAny for PlusMinusProductWrapper

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impl Eq for PlusMinusProductWrapper

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impl StructuralPartialEq for PlusMinusProductWrapper

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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