Function applyTrotterizedUnitaryTimeEvolution

quest/src/api/trotterisation.cpp:228–239

extern "C" {

void applyTrotterizedUnitaryTimeEvolution(Qureg qureg, PauliStrSum hamil, qreal time, int order, int reps) {
    validate_quregFields(qureg, __func__);
    validate_pauliStrSumFields(hamil, __func__);
    validate_pauliStrSumTargets(hamil, qureg, __func__);
    validate_pauliStrSumIsHermitian(hamil, __func__);
    validate_trotterParams(qureg, order, reps, __func__);

    // exp(-i t H) = exp(x i H) | x=-t
    qcomp angle = - time;
    bool onlyLeftApply = false;
    internal_applyAllTrotterRepetitions(qureg, nullptr, nullptr, 0, hamil, angle, order, reps, onlyLeftApply);
}

void applyTrotterizedImaginaryTimeEvolution(Qureg qureg, PauliStrSum hamil, qreal tau, int order, int reps) {
    validate_quregFields(qureg, __func__);