Function applyNonUnitaryPauliGadget

quest/src/api/operations.cpp:1248–1262

}

void applyNonUnitaryPauliGadget(Qureg qureg, PauliStr str, qcomp angle) {
    validate_quregFields(qureg, __func__);
    validate_pauliStrTargets(qureg, str, __func__);

    qcomp phase = util_getPhaseFromGateAngle(angle);
    localiser_statevec_anyCtrlPauliGadget(qureg, {}, {}, str, phase);

    if (!qureg.isDensityMatrix)
        return;

    // conj(e^i(a)P) = e^(-i s conj(a) P)
    phase = - std::conj(phase) * paulis_getSignOfPauliStrConj(str);
    str = paulis_getShiftedPauliStr(str, qureg.numQubits);
    localiser_statevec_anyCtrlPauliGadget(qureg, {}, {}, str, phase);
}

void applyControlledPauliGadget(Qureg qureg, int control, PauliStr str, qreal angle) {
    validate_quregFields(qureg, __func__);