Measurement operation class. More...

#include <Measurements.h>

Inheritance diagram for Circuits::MeasurementOperation< Time >:

Public Member Functions
	MeasurementOperation (const std::vector< std::pair< Types::qubit_t, size_t > > &qs={}, Time delay=0)
	Constructor.
OperationType	GetType () const override
	Get the type of the operation.
virtual size_t	GetNumQubits () const
	Get the number of qubits affected by the operation.
void	Clear ()
	Clears the qubits and classical bits involved in the measurement.
void	SetQubits (const std::vector< std::pair< Types::qubit_t, size_t > > &qs)
	Sets the qubits and classical bits involved in the measurement.
const Types::qubits_vector &	GetQubits () const
	Returns the qubits that are to be measured.
const std::vector< size_t > &	GetBitsIndices () const
	Returns the classical bits where the measurement results are stored.
void	Execute (const std::shared_ptr< Simulators::ISimulator > &sim, OperationState &state) const override
	Executes the measurement on the given simulator.
void	Sample (const std::shared_ptr< Simulators::ISimulator > &sim, OperationState &state) const
	Samples the measurement on the given simulator.
void	SetStateFromSample (size_t measurements, OperationState &state) const
void	SetStateFromAllMeasurements (size_t allMeasurements, OperationState &state) const
std::shared_ptr< IOperation< Time > >	Clone () const override
	Get a shared pointer to a clone of this object.
Types::qubits_vector	AffectedQubits () const override
	Returns the qubits affected by the measurement.
std::vector< size_t >	AffectedBits () const override
	Returns the classical bits affected by the measurement.
std::shared_ptr< IOperation< Time > >	Remap (const std::unordered_map< Types::qubit_t, Types::qubit_t > &qubitsMap, const std::unordered_map< Types::qubit_t, Types::qubit_t > &bitsMap={}) const override
	Get a shared pointer to a remapped operation.
bool	IsClifford () const override
	Checks if the operation is a Clifford one.
void	SetQubit (size_t index, Types::qubit_t qubit)
	Set the qubit to measure.
void	SetBit (size_t index, Types::qubit_t bit)
	Set the classical bit to index.
Public Member Functions inherited from Circuits::IOperation< Types::time_type >
	IOperation (Types::time_type delay=0)
	Construct a new IOperation object.
virtual	~IOperation ()=default
	Destroy the IOperation object.
virtual bool	CanAffectQuantumState () const
	Find if the operation can affect the quantum state.
virtual bool	NeedsEntanglementForDistribution () const
	Find if the operation needs entanglement for distribution.
virtual bool	IsConditional () const
	Find if the operation is a conditional operation.
std::shared_ptr< IOperation< Types::time_type > >	getptr ()
	Get a shared pointer to this object.
Types::time_type	GetDelay () const
	Get the delay of the operation.
void	SetDelay (Types::time_type d)
	Set the delay of the operation.

Detailed Description

template<typename Time = Types::time_type>
class Circuits::MeasurementOperation< Time >

Measurement operation class.

Implementation of an operation that does a qubits measurements on a simulator. The results are stored in a classical 'state'. Each qubit has a corresponding classical 'bit' where the measurement result is stored.

Template Parameters

Time	The time type used for the simulation.

See also: IOperation

Definition at line 36 of file Measurements.h.

Constructor & Destructor Documentation

◆ MeasurementOperation()

template<typename Time = Types::time_type>

Circuits::MeasurementOperation< Time >::MeasurementOperation	(	const std::vector< std::pair< Types::qubit_t, size_t > > &	qs = {},
		Time	delay = 0 )

inline

Constructor.

Creates a measurement operation that measures the given qubits and stores the results in the given bits.

Parameters

qs	The qubits to measure and the classical bits where the result is stored, specified as pairs.
delay	The duration of the operation.

See also: IOperation

Definition at line 48 of file Measurements.h.

Member Function Documentation

◆ AffectedBits()

template<typename Time = Types::time_type>

std::vector< size_t > Circuits::MeasurementOperation< Time >::AffectedBits ( ) const

inlineoverridevirtual

Returns the classical bits affected by the measurement.

Returns: The classical bits affected by the measurement.

Reimplemented from Circuits::IOperation< Types::time_type >.

Definition at line 216 of file Measurements.h.

◆ AffectedQubits()

template<typename Time = Types::time_type>

Types::qubits_vector Circuits::MeasurementOperation< Time >::AffectedQubits ( ) const

inlineoverridevirtual

Returns the qubits affected by the measurement.

Returns: The qubits affected by the measurement.

Reimplemented from Circuits::IOperation< Types::time_type >.

Definition at line 208 of file Measurements.h.

◆ Clear()

template<typename Time = Types::time_type>

void Circuits::MeasurementOperation< Time >::Clear ( )

inline

Clears the qubits and classical bits involved in the measurement.

Definition at line 77 of file Measurements.h.

◆ Clone()

template<typename Time = Types::time_type>

std::shared_ptr< IOperation< Time > > Circuits::MeasurementOperation< Time >::Clone ( ) const

inlineoverridevirtual

Get a shared pointer to a clone of this object.

Returns a shared pointer to a copy of this object.

Returns: A shared pointer to this object.

Implements Circuits::IOperation< Types::time_type >.

Definition at line 193 of file Measurements.h.

◆ Execute()

template<typename Time = Types::time_type>

void Circuits::MeasurementOperation< Time >::Execute	(	const std::shared_ptr< Simulators::ISimulator > &	sim,
		OperationState &	state ) const

inlineoverridevirtual

Executes the measurement on the given simulator.

Parameters

sim	The simulator to execute the measurement on.
state	The classical state for the simulator.

See also: ISimulator; OperationState

Implements Circuits::IOperation< Types::time_type >.

Definition at line 124 of file Measurements.h.

◆ GetBitsIndices()

template<typename Time = Types::time_type>

const std::vector< size_t > & Circuits::MeasurementOperation< Time >::GetBitsIndices ( ) const

inline

Returns the classical bits where the measurement results are stored.

Returns: The classical bits where the measurement results are stored.

Definition at line 113 of file Measurements.h.

◆ GetNumQubits()

template<typename Time = Types::time_type>

virtual size_t Circuits::MeasurementOperation< Time >::GetNumQubits ( ) const

inlinevirtual

Get the number of qubits affected by the operation.

Returns the number of qubits affected by the operation.

Returns: The number of qubits affected by the operation.

Definition at line 70 of file Measurements.h.

◆ GetQubits()

template<typename Time = Types::time_type>

const Types::qubits_vector & Circuits::MeasurementOperation< Time >::GetQubits ( ) const

inline

Returns the qubits that are to be measured.

Returns: The qubits to measure.

Definition at line 105 of file Measurements.h.

◆ GetType()

template<typename Time = Types::time_type>

OperationType Circuits::MeasurementOperation< Time >::GetType ( ) const

inlineoverridevirtual

Get the type of the operation.

Returns the type of the operation, in this case, measurement.

Returns: The type of the operation.

See also: OperationType

Reimplemented from Circuits::IOperation< Types::time_type >.

Definition at line 62 of file Measurements.h.

◆ IsClifford()

template<typename Time = Types::time_type>

bool Circuits::MeasurementOperation< Time >::IsClifford ( ) const

inlineoverridevirtual

Checks if the operation is a Clifford one.

Checks if the operation is a Clifford one, allowing to be simulated in a stabilizers simulator.

Returns: True if it can be applied in a stabilizers simulator, false otherwise.

Reimplemented from Circuits::IOperation< Types::time_type >.

Definition at line 264 of file Measurements.h.

◆ Remap()

template<typename Time = Types::time_type>

std::shared_ptr< IOperation< Time > > Circuits::MeasurementOperation< Time >::Remap	(	const std::unordered_map< Types::qubit_t, Types::qubit_t > &	qubitsMap,
		const std::unordered_map< Types::qubit_t, Types::qubit_t > &	bitsMap = {} ) const

inlineoverridevirtual

Get a shared pointer to a remapped operation.

Returns a shared pointer to a copy of the operation with qubits and classical bits changed according to the provided maps.

Parameters

qubitsMap	The map of qubits to remap.
bitsMap	The map of classical bits to remap.

Returns: A shared pointer to the remapped object.

Implements Circuits::IOperation< Types::time_type >.

Definition at line 229 of file Measurements.h.

◆ Sample()

template<typename Time = Types::time_type>

void Circuits::MeasurementOperation< Time >::Sample	(	const std::shared_ptr< Simulators::ISimulator > &	sim,
		OperationState &	state ) const

inline

Samples the measurement on the given simulator.

Samples the measurement on the given simulator. Should not apply the measurement.

Parameters

sim	The simulator to sample the measurement on.
state	The classical state for the simulator.

See also: ISimulator; OperationState

Definition at line 148 of file Measurements.h.

◆ SetBit()

template<typename Time = Types::time_type>

void Circuits::MeasurementOperation< Time >::SetBit	(	size_t	index,
		Types::qubit_t	bit )

inline

Set the classical bit to index.

This method sets the classical bit index at the specified index.

Parameters

index	The index of the classical bit index.
bit	The classical bit index to set.

Definition at line 285 of file Measurements.h.

◆ SetQubit()

template<typename Time = Types::time_type>

void Circuits::MeasurementOperation< Time >::SetQubit	(	size_t	index,
		Types::qubit_t	qubit )

inline

Set the qubit to measure.

This method sets the qubit to measure at the specified index.

Parameters

index	The index of the qubit to measure.
qubit	The qubit to measure.

Definition at line 273 of file Measurements.h.

◆ SetQubits()

template<typename Time = Types::time_type>

void Circuits::MeasurementOperation< Time >::SetQubits ( const std::vector< std::pair< Types::qubit_t, size_t > > & qs )

inline

Sets the qubits and classical bits involved in the measurement.

Sets the qubits and classical bits involved in the measurement, specified as pairs.

Parameters

qs	The qubits to measure and the classical bits where the result is stored, specified as pairs.

Definition at line 90 of file Measurements.h.

◆ SetStateFromAllMeasurements()

template<typename Time = Types::time_type>

void Circuits::MeasurementOperation< Time >::SetStateFromAllMeasurements	(	size_t	allMeasurements,
		OperationState &	state ) const

inline

Definition at line 172 of file Measurements.h.

◆ SetStateFromSample()

template<typename Time = Types::time_type>

void Circuits::MeasurementOperation< Time >::SetStateFromSample	(	size_t	measurements,
		OperationState &	state ) const

inline

Definition at line 161 of file Measurements.h.

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

Measurements.h

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ MeasurementOperation()

Member Function Documentation

◆ AffectedBits()

◆ AffectedQubits()

◆ Clear()

◆ Clone()

◆ Execute()

◆ GetBitsIndices()

◆ GetNumQubits()

◆ GetQubits()

◆ GetType()

◆ IsClifford()

◆ Remap()

◆ Sample()

◆ SetBit()

◆ SetQubit()

◆ SetQubits()

◆ SetStateFromAllMeasurements()

◆ SetStateFromSample()