Pauli gadgets

Functions for pre- or post-multiplying many-qubit rotations around arbitrary PauliStr upon density matrices. More...

Functions
void	leftapplyPauliGadget (Qureg qureg, PauliStr str, qreal angle)
void	rightapplyPauliGadget (Qureg qureg, PauliStr str, qreal angle)

Detailed Description

Functions for pre- or post-multiplying many-qubit rotations around arbitrary PauliStr upon density matrices.

Function Documentation

leftapplyPauliGadget()

void leftapplyPauliGadget	(	Qureg	qureg,
		PauliStr	str,
		qreal	angle )

Note

Documentation for this function or struct is under construction!

See also

• leftapplyCompMatr1()
• applyPauliGadget()

Definition at line 468 of file multiplication.cpp.

                                                                  {
    validate_quregFields(qureg, __func__);
    validate_pauliStrTargets(qureg, str, __func__);
 
    qreal phase = util_getPhaseFromGateAngle(angle);
    localiser_statevec_anyCtrlPauliGadget(qureg, {}, {}, str, phase);
}

rightapplyPauliGadget()

void rightapplyPauliGadget	(	Qureg	qureg,
		PauliStr	str,
		qreal	angle )

Note

Documentation for this function or struct is under construction!

See also

• rightapplyCompMatr1()
• applyPauliGadget()

Definition at line 476 of file multiplication.cpp.

                                                                   {
    validate_quregFields(qureg, __func__);
    validate_quregIsDensityMatrix(qureg, __func__);
    validate_pauliStrTargets(qureg, str, __func__);
 
    qreal factor = paulis_getSignOfPauliStrConj(str);
    qreal phase = factor * util_getPhaseFromGateAngle(angle);
    str = paulis_getShiftedPauliStr(str, qureg.numQubits);
    localiser_statevec_anyCtrlPauliGadget(qureg, {}, {}, str, phase);
}