public void Update(int x, int y, int z, int t, int dir, bool withOR)
{
Link A = GetSumOfStaples(x, y, z, t, dir);
//here A is the sum of staples!
//heatbath
//Link W = Mul(U[x, y, z, t, dir], A); double det;
//Link X = new Link(true);
////for heat-bath
//for (int i = 0; i < d; i++)
// for (int j = i + 1; j < d; j++)
// {
// Complex a = W.A[i, i];
// Complex B = W.A[i, j];
// Complex C = W.A[j, i];
// Complex D = W.A[j, j];
// // det = (W.A[i, i] * W.A[j, j] - W.A[i, j] * W.A[j, i]).x;
// double x0 = 1 / 2f * (a.x + D.x);
// double x1 = 1 / 2f * (B.y + C.y);
// double x2 = 1 / 2f * (B.x - C.x);
// double x3 = 1 / 2f * (a.y - D.y);
// // det = GetDet(A);
// det = x0 * x0 + x1 * x1 + x2 * x2 + x3 * x3;
// Link a_ = GetHeatBath(det, i, j);
// Link r = new Link(true);
// det = Math.Sqrt(det);
// x0 /= det;
// x1 /= det;
// x2 /= det;
// x3 /= det;
// r.A[i, i] = new Complex(x0, x3);
// r.A[i, j] = new Complex(x2, x1);
// r.A[j, i] = new Complex(-x2, x1);
// r.A[j, j] = new Complex(x0, -x3);
// r = Mul(a_, r.HermConj());
// W = Mul(r, W);
// X = Mul(r, X);
// }
//U[x, y, z, t, dir] = Mul(X, U[x, y, z, t, dir]);
//
//for overrelaxation
//if (GetRandom() < 0.1)
/* if (withOR)
{
//for (int or = 0; or < 0; or++)
//{
//calculating determinant of SU(2)
double det = Math.Pow(GetDet(A),1.0/3.0);
for (int i = 0; i < SU3.d; i++)
for (int j = 0; j < SU3.d; j++)
{
A.A[i, j].x /= det;
A.A[i, j].y /= det;
}
A = Mul(A.HermConj(), Mul(U[x, y, z, t, dir].HermConj(), A.HermConj()));
Orthogonalize(ref A);
U[x, y, z, t, dir]=A;
}
else
{*/
//for Metropolis
//for (int hit = 0; hit <= 10; hit++)
//{
// bool accepted = false; double dSG; Link X = new Link(true);
// while (!accepted)
// {
// X = GetRandomMetroLink();
// //-I
// for (int i = 0; i < d; i++) X.A[i, i].x--;
// dSG = -beta / SU3.d * ReTr(Mul(X, Mul(U[x, y, z, t, dir], A)));
// double r = GetRandom();
// if (r <= Math.Exp(-dSG)) accepted = true;
// }
// for (int i = 0; i < d; i++) X.A[i, i].x++;
// U[x, y, z, t, dir] = Mul(X, U[x, y, z, t, dir]);
//}
//for poor dynamical fermions
for (int hit = 0; hit <= 10; hit++)
{
bool accepted = false; double dSG; Link X = new Link(true);
while (!accepted)
{
X = GetRandomMetroLink();
Xsite = new Site(x, y, z, t); Xdir = dir;
Uprime = Mul(X, U[x, y, z, t, dir]);
Dirac D = new Dirac(this);
Vector chi = new Vector(Dirac.N);
chi.FillGaussRandom();
D.phi = D.MulD(chi);
double Fold = Dirac.V1hermV2(chi, chi).x;
D.Prepare();
D.IterPrime();
//here - D.x = D^-1*phi
double Fnew = Dirac.V1hermV2(D.x, D.x).x;
double dSF = Fnew - Fold;
//X-I
for (int i = 0; i < d; i++) X.A[i, i].x--;
dSG = -beta / SU3.d * ReTr(Mul(X, Mul(U[x, y, z, t, dir], A)));
double r = GetRandom();
if (r <= Math.Exp(-(dSG + dSF))) accepted = true;
}
for (int i = 0; i < d; i++) X.A[i, i].x++;
U[x, y, z, t, dir] = Mul(X, U[x, y, z, t, dir]);
}
}
double dSF()
{
Dirac D = new Dirac(this);
Vector chi = new Vector(Dirac.N, DateTime.Now.Millisecond);
D.phi = D.MulD(chi);
return 0;
}
private void button13_Click(object sender, EventArgs e)
{
//double beta = 6;
//SU3 Field = new SU3(int.Parse(tbNs.Text),int.Parse(tbNt.Text), beta, 0, true);//4х2 field beta=6 flux=0
//for (int i = 0; i < 10; i++) Field.Sweep(false);
//Dirac Dt = new Dirac(Field);
//Complex res = Complex.Zero;
//DateTime t = DateTime.Now;
//Dirac D = new Dirac(Field);
////D.phi[0, 0, 0] = Complex.One;
//D.phi.FillGaussRandom();
//double philen = Dirac.V1hermV2(D.phi, D.phi).Module();
//D.Prepare();
//for (int i = 0; i < 100; i++)
//{
// D.Iter();
// Vector phinew = D.MulD(D.x);
// double pn = Dirac.V1hermV2(phinew, phinew).Module(); //D.V1hermV2(D.ri, D.ri).Module();
// double r = Dirac.V1hermV2(D.ri, D.ri).Module();
// Text = "i = " + i.ToString() + " philen=" + philen.ToString() + " =? " + pn.ToString() + " r= " + r.ToString()+" "+(DateTime.Now - t).ToString();
// t = DateTime.Now;
// Application.DoEvents();
// if (r < 1E-5) break;
//}
int Ns = 4; int Nt = 2;
SU3 UnityField = new SU3(Ns, Nt, 6, 0, true);
for (int i = 0; i < Ns; i++)
for (int j = 0; j < Ns; j++)
for (int k = 0; k < Ns; k++)
for (int t = 0; t < Nt; t++)
for (int m = 1; m <= 4; m++)
{
for (int a = 0; a < 3; a++)
for (int b = 0; b < 3; b++)
UnityField.U[i, j, k, t, m].A[a, b] = new Complex(1, 1);
}
Complex sum = Complex.Zero;
Dirac D = new Dirac(UnityField);
D.phi.FillUnity();
Vector v1 = D.MulD(D.phi);
Text = Dirac.V1hermV2(v1,v1).ToString();
//Complex sum = Complex.Zero;
//for (int i = 0; i < Ns * Ns * Ns * Nt; i++)
//{
// for (byte alpha = 0; alpha < 4; alpha++)
// for (byte a = 0; a < 3; a++)
// {
// Dirac D = new Dirac(UnityField);
// //D.phi.FillUnity();
// //Vector v1 = D.MulD(D.phi);
// D.phi[i, alpha, a] = Complex.One;
// D.Prepare();
// int it = D.Iter();
// Text = it.ToString();
// //Vector v2 = D.x;
// sum += D.x[i, alpha, a];
// //Text = it.ToString()+Dirac.V1hermV2(v2, v2).ToString();
// }
// Text = i.ToString() + " temps=" + sum.ToString(); Application.DoEvents();
//}
//Text = sum.ToString();
}