pyqpanda3.quantum_info.StateVector Class Reference

Public Member Functions
None	__init__ (self)
	init(*args, **kwargs) Overloaded function.
None	__init__ (self, StateVector other)
	init(*args, **kwargs) Overloaded function.
None	__init__ (self, dict[int, complex] data)
	init(*args, **kwargs) Overloaded function.
None	__init__ (self, list[complex] data)
	init(*args, **kwargs) Overloaded function.
None	__init__ (self, numpy.ndarray[numpy.complex128[m, 1]] data)
	init(*args, **kwargs) Overloaded function.
None	__init__ (self, int qbit_total)
	init(*args, **kwargs) Overloaded function.
complex	at (self, int idx)
	at(self: quantum_info.StateVector, idx: int) -> complex
int	dim (self)
	dim(self: quantum_info.StateVector) -> int
StateVector	evolve (self, circuit)
	evolve(self: quantum_info.StateVector, circuit: QPanda::QCircuit) -> quantum_info.StateVector
Matrix	get_density_matrix (self)
	get_density_matrix(self: quantum_info.StateVector) -> quantum_info.Matrix
bool	is_valid (self)
	is_valid(self: quantum_info.StateVector) -> bool
numpy.ndarray[numpy.complex128]	ndarray (self)
	ndarray(self: quantum_info.StateVector) -> numpy.ndarray[numpy.complex128]
complex	purity (self)
	purity(self: quantum_info.StateVector) -> complex
StateVector	update_by_evolve (self, circuit)
	update_by_evolve(self: quantum_info.StateVector, circuit: QPanda::QCircuit) -> quantum_info.StateVector
bool	__eq__ (self, StateVector other)
	eq(self: quantum_info.StateVector, other: quantum_info.StateVector) -> bool

Constructor & Destructor Documentation

__init__() [1/6]

None pyqpanda3.quantum_info.StateVector.__init__

(

self

)

init(*args, **kwargs) Overloaded function.

1. init(self: quantum_info.StateVector) -> None

Default constructor, which by default constructs a state vector for a quantum system with only one qubit and its current state being all zeros.

1. init(self: quantum_info.StateVector, other: quantum_info.StateVector) -> None

Generate a StateVector object from another StateVector object

Parameters

other

another StateVector object

1. init(self: quantum_info.StateVector, data: dict[int, complex]) -> None

Construct a state vector based on the input dictionary

Parameters

data	a dictionary

1. init(self: quantum_info.StateVector, data: list[complex]) -> None

Construct a state vector based on a given complex number array

Parameters

data	a complex number array

1. init(self: quantum_info.StateVector, data: numpy.ndarray[numpy.complex128[m, 1]]) -> None

Construct a state vector based on a given complex number array

Parameters

data	a complex number array

1. init(self: quantum_info.StateVector, qbit_total: int) -> None

Specify the total number of qubits in the quantum system and generate a state vector where the state of each qubit is currently 0

Parameters

qbit_total

the total number of qubits in the quantum system

__init__() [2/6]

None pyqpanda3.quantum_info.StateVector.__init__	(		self,
		StateVector	other )

init(*args, **kwargs) Overloaded function.

1. init(self: quantum_info.StateVector) -> None

Default constructor, which by default constructs a state vector for a quantum system with only one qubit and its current state being all zeros.

1. init(self: quantum_info.StateVector, other: quantum_info.StateVector) -> None

Generate a StateVector object from another StateVector object

Parameters

other

another StateVector object

1. init(self: quantum_info.StateVector, data: dict[int, complex]) -> None

Construct a state vector based on the input dictionary

Parameters

data	a dictionary

1. init(self: quantum_info.StateVector, data: list[complex]) -> None

Construct a state vector based on a given complex number array

Parameters

data	a complex number array

1. init(self: quantum_info.StateVector, data: numpy.ndarray[numpy.complex128[m, 1]]) -> None

Construct a state vector based on a given complex number array

Parameters

data	a complex number array

1. init(self: quantum_info.StateVector, qbit_total: int) -> None

Specify the total number of qubits in the quantum system and generate a state vector where the state of each qubit is currently 0

Parameters

qbit_total

the total number of qubits in the quantum system

__init__() [3/6]

None pyqpanda3.quantum_info.StateVector.__init__	(		self,
		dict[int, complex]	data )

init(*args, **kwargs) Overloaded function.

1. init(self: quantum_info.StateVector) -> None

Default constructor, which by default constructs a state vector for a quantum system with only one qubit and its current state being all zeros.

1. init(self: quantum_info.StateVector, other: quantum_info.StateVector) -> None

Generate a StateVector object from another StateVector object

Parameters

other

another StateVector object

1. init(self: quantum_info.StateVector, data: dict[int, complex]) -> None

Construct a state vector based on the input dictionary

Parameters

data	a dictionary

1. init(self: quantum_info.StateVector, data: list[complex]) -> None

Construct a state vector based on a given complex number array

Parameters

data	a complex number array

1. init(self: quantum_info.StateVector, data: numpy.ndarray[numpy.complex128[m, 1]]) -> None

Construct a state vector based on a given complex number array

Parameters

data	a complex number array

1. init(self: quantum_info.StateVector, qbit_total: int) -> None

Specify the total number of qubits in the quantum system and generate a state vector where the state of each qubit is currently 0

Parameters

qbit_total

the total number of qubits in the quantum system

__init__() [4/6]

None pyqpanda3.quantum_info.StateVector.__init__	(		self,
		list[complex]	data )

init(*args, **kwargs) Overloaded function.

1. init(self: quantum_info.StateVector) -> None

Default constructor, which by default constructs a state vector for a quantum system with only one qubit and its current state being all zeros.

1. init(self: quantum_info.StateVector, other: quantum_info.StateVector) -> None

Generate a StateVector object from another StateVector object

Parameters

other

another StateVector object

1. init(self: quantum_info.StateVector, data: dict[int, complex]) -> None

Construct a state vector based on the input dictionary

Parameters

data	a dictionary

1. init(self: quantum_info.StateVector, data: list[complex]) -> None

Construct a state vector based on a given complex number array

Parameters

data	a complex number array

1. init(self: quantum_info.StateVector, data: numpy.ndarray[numpy.complex128[m, 1]]) -> None

Construct a state vector based on a given complex number array

Parameters

data	a complex number array

1. init(self: quantum_info.StateVector, qbit_total: int) -> None

Specify the total number of qubits in the quantum system and generate a state vector where the state of each qubit is currently 0

Parameters

qbit_total

the total number of qubits in the quantum system

__init__() [5/6]

None pyqpanda3.quantum_info.StateVector.__init__	(		self,
		numpy.ndarray[numpy.complex128[m, 1]]	data )

init(*args, **kwargs) Overloaded function.

1. init(self: quantum_info.StateVector) -> None

Default constructor, which by default constructs a state vector for a quantum system with only one qubit and its current state being all zeros.

1. init(self: quantum_info.StateVector, other: quantum_info.StateVector) -> None

Generate a StateVector object from another StateVector object

Parameters

other

another StateVector object

1. init(self: quantum_info.StateVector, data: dict[int, complex]) -> None

Construct a state vector based on the input dictionary

Parameters

data	a dictionary

1. init(self: quantum_info.StateVector, data: list[complex]) -> None

Construct a state vector based on a given complex number array

Parameters

data	a complex number array

1. init(self: quantum_info.StateVector, data: numpy.ndarray[numpy.complex128[m, 1]]) -> None

Construct a state vector based on a given complex number array

Parameters

data	a complex number array

1. init(self: quantum_info.StateVector, qbit_total: int) -> None

Specify the total number of qubits in the quantum system and generate a state vector where the state of each qubit is currently 0

Parameters

qbit_total

the total number of qubits in the quantum system

__init__() [6/6]

None pyqpanda3.quantum_info.StateVector.__init__	(		self,
		int	qbit_total )

init(*args, **kwargs) Overloaded function.

1. init(self: quantum_info.StateVector) -> None

Default constructor, which by default constructs a state vector for a quantum system with only one qubit and its current state being all zeros.

1. init(self: quantum_info.StateVector, other: quantum_info.StateVector) -> None

Generate a StateVector object from another StateVector object

Parameters

other

another StateVector object

1. init(self: quantum_info.StateVector, data: dict[int, complex]) -> None

Construct a state vector based on the input dictionary

Parameters

data	a dictionary

1. init(self: quantum_info.StateVector, data: list[complex]) -> None

Construct a state vector based on a given complex number array

Parameters

data	a complex number array

1. init(self: quantum_info.StateVector, data: numpy.ndarray[numpy.complex128[m, 1]]) -> None

Construct a state vector based on a given complex number array

Parameters

data	a complex number array

1. init(self: quantum_info.StateVector, qbit_total: int) -> None

Specify the total number of qubits in the quantum system and generate a state vector where the state of each qubit is currently 0

Parameters

qbit_total

the total number of qubits in the quantum system

Member Function Documentation

__eq__()

bool pyqpanda3.quantum_info.StateVector.__eq__	(		self,
		StateVector	other )

eq(self: quantum_info.StateVector, other: quantum_info.StateVector) -> bool

Equality check. Determine if the internal data of two StateVector objects are equal.

Parameters

StateVector

another StateVector object

Returns

Bool if they are same, return true.

at()

complex pyqpanda3.quantum_info.StateVector.at	(		self,
		int	idx )

at(self: quantum_info.StateVector, idx: int) -> complex

Retrieve the element with index

Parameters

idx,the

index of the element

Returns

the element with index

dim()

int pyqpanda3.quantum_info.StateVector.dim

(

self

)

dim(self: quantum_info.StateVector) -> int

Retrieve the number of ground states corresponding to the state vector

Returns

the number of ground states corresponding to the state vector.

evolve()

StateVector pyqpanda3.quantum_info.StateVector.evolve	(		self,
			circuit )

evolve(self: quantum_info.StateVector, circuit: QPanda::QCircuit) -> quantum_info.StateVector

Evolve the quantum state using the quantum circuit QCircuit without updating the internal data of the original StateVector object, and return the result as a new StateVector object

Parameters

circuit

a quantum circuit QCircuit

Returns

a new StateVector object

get_density_matrix()

Matrix pyqpanda3.quantum_info.StateVector.get_density_matrix

(

self

)

get_density_matrix(self: quantum_info.StateVector) -> quantum_info.Matrix

Retrieve the density matrix corresponding to the state vector.

Returns

the density matrix corresponding to the state vector.

is_valid()

bool pyqpanda3.quantum_info.StateVector.is_valid

(

self

)

is_valid(self: quantum_info.StateVector) -> bool

Check if the internal data of the state vector is valid.

Returns

return true if is valid

ndarray()

numpy.ndarray[numpy.complex128] pyqpanda3.quantum_info.StateVector.ndarray

(

self

)

ndarray(self: quantum_info.StateVector) -> numpy.ndarray[numpy.complex128]

Generate a numpy.ndarray object using data in self

Returns

a numpy.ndarray object

purity()

complex pyqpanda3.quantum_info.StateVector.purity

(

self

)

purity(self: quantum_info.StateVector) -> complex

Retrieve the purity of the state vector.

Returns

the purity of the state vector

update_by_evolve()

StateVector pyqpanda3.quantum_info.StateVector.update_by_evolve	(		self,
			circuit )

update_by_evolve(self: quantum_info.StateVector, circuit: QPanda::QCircuit) -> quantum_info.StateVector

Evolve the quantum state using the quantum circuit QCircuit and update the internal data of the original StateVector object

Parameters

circuit

a quantum circuit QCircuit

Returns

a new StateVector object

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The documentation for this class was generated from the following file:

• pyqpanda3/quantum_info.py