Projectors

Functions for effecting projectors which break the state normalisation. More...

Functions
void	applyMultiQubitProjector (Qureg qureg, int *qubits, int *outcomes, int numQubits)
void	applyQubitProjector (Qureg qureg, int target, int outcome)

Detailed Description

Functions for effecting projectors which break the state normalisation.

Function Documentation

applyMultiQubitProjector()

void applyMultiQubitProjector	(	Qureg	qureg,
		int *	qubits,
		int *	outcomes,
		int	numQubits )

Note

Documentation for this function or struct is under construction!

Attention

This function's input validation has not yet been unit tested, so erroneous usage may produce unexpected output. Please use with caution!

Definition at line 1570 of file operations.cpp.

                                                                                      {
    validate_quregFields(qureg, __func__);
    validate_targets(qureg, qubits, numQubits, __func__);
    validate_measurementOutcomesAreValid(outcomes, numQubits, __func__);
 
    qreal prob = 1;
    auto qubitVec = util_getVector(qubits, numQubits);
    auto outcomeVec = util_getVector(outcomes, numQubits);
 
    // density matrix has an optimised func in lieu of calling the statevector func twice
    (qureg.isDensityMatrix)?
        localiser_densmatr_multiQubitProjector(qureg, qubitVec, outcomeVec, prob):
        localiser_statevec_multiQubitProjector(qureg, qubitVec, outcomeVec, prob);
}

Referenced by applyMultiQubitProjector(), and TEST_CASE().

applyQubitProjector()

void applyQubitProjector	(	Qureg	qureg,
		int	target,
		int	outcome )

Note

Documentation for this function or struct is under construction!

Attention

This function's input validation has not yet been unit tested, so erroneous usage may produce unexpected output. Please use with caution!

Definition at line 1557 of file operations.cpp.

                                                               {
    validate_quregFields(qureg, __func__);
    validate_target(qureg, target, __func__);
    validate_measurementOutcomeIsValid(outcome, __func__); 
    
    qreal prob = 1;
 
    // density matrix has an optimised func in lieu of calling the statevector func twice
    (qureg.isDensityMatrix)?
        localiser_densmatr_multiQubitProjector(qureg, {target}, {outcome}, prob):
        localiser_statevec_multiQubitProjector(qureg, {target}, {outcome}, prob);
}

Referenced by TEST_CASE().