1 //---------------------------------------------------------------------------
2 // Controlled Rotate Gate
3 //---------------------------------------------------------------------------
7 //---------------------------------------------------------------------------
11 QC_crot::QC_crot(int _TargetBit,int _ControlBit, double degree) : QCalcUnit() {
12 TargetBit = _TargetBit;
13 ControlBit = _ControlBit;
14 Theta = M_PI * degree / 180.0;
16 //---------------------------------------------------------------------------
21 QC_crot::calc(int Target, int Control, double theta,
22 double R[], double I[], int NumberOfBits) {
23 unsigned int states = 1<< (NumberOfBits - 2);
27 if (Bit0 > Bit1) swap(Bit0, Bit1);
29 const double c = std::cos(theta);
30 const double s = std::sin(theta);
33 for (unsigned int i = 0; i < states; i++) {
34 unsigned int ix1 = QCalcUnit::insert1(i, Bit0);
35 ix1 = QCalcUnit::insert1(ix1, Bit1);
43 //---------------------------------------------------------------------------
45 QC_crot::Calc(QBits *qBits) {
46 int N = qBits->GetNumberOfQBits();
47 double *R = qBits->GetBitsR();//Real Part
48 double *I = qBits->GetBitsI();//Imaginary Part
50 QC_crot::calc(TargetBit, ControlBit, Theta, R, I, N);
52 //---------------------------------------------------------------------------
55 QC_crot::calcmpi(int t1, int c1, double theta, double R[], double I[], int N) {
56 const double c = std::cos(theta);
57 const double s = std::sin(theta);
62 unsigned int ix0, ix1;
64 // Sort BitsNumber to regular order
71 for (int i = 0; i < (1 << (N - 2)); i++) {
72 // Obtain indices of state:
73 unsigned int ix1 = QCalcUnit::insert1(i, Bit0);
74 ix1 = QCalcUnit::insert1(ix1, Bit1);
75 unsigned int ix0 = ix1 & ~(1 << t1);
77 bool bstore = setup(R, I, ix0, ix1, r0, i0, r1, i1);
81 double nr1 = c*r1 - s*i1;
82 double ni1 = s*r1 + c*i1;
84 store(R, I, ix0, ix1, nr0, ni0, nr1, ni1);
89 //---------------------------------------------------------------------------