Esempio n. 1
0
        private void button10_Click(object sender, EventArgs e)
        {
            double beta = 10;
            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;

            for (int n = 0; n < Dirac.N; n++)
                for (byte alpha = 0; alpha < 4; alpha++)
                    for (byte a = 0; a < 3; a++)
                    {
                        DateTime t = DateTime.Now;
                        Dirac D = new Dirac(Field);

                        D.phi[n, alpha, a] = Complex.One;
                        //double philen = Dirac.V1hermV2(D.phi, D.phi).Module();

                        D.Prepare();
                        for (int i = 0; i < 5; i++)
                        {
                            D.Iter();
                            //Vector phinew = D.MulD(D.x);
                            //double r = 0;// D.V1hermV2(phinew, phinew).Module(); //D.V1hermV2(D.ri, D.ri).Module();
                            //Text = "i = " + i.ToString() + "    philen=" + philen.ToString() + "  =?  " + r.ToString() + "     " + (DateTime.Now - t).ToString();
                            //t = DateTime.Now;
                        }
                        res += D.x[n, alpha, a];
                        Text = n.ToString() + " " + (res / new Complex((n + 1) * 12, 0)).ToString();
                        Application.DoEvents();
                        if (CloseMe) break;
                    }
            Text = (res / new Complex(Dirac.N, 0)).ToString();

            //for (int exp = 0; exp < 1; exp++)
            //{
            //    double beta = 6;// 1 + 10 * exp;
            //    SU3 Field = new SU3(4, 2, beta, 0, true);//4х2 field beta=6 flux=0
            //    for (int i = 0; i < 10; i++) Field.Sweep(false);

            //    DateTime t = DateTime.Now;

            //    int K = 100;
            //    Vector[] chi = new Vector[K];
            //    Complex tr = new Complex();
            //    for (int k = 0; k < K; k++)
            //    {
            //        Dirac D = new Dirac(Field);
            //        chi[k] = new Vector(Dirac.N, rand.Next());
            //        chi[k].FillGaussRandom();
            //        D.phi = chi[k];
            //        //double philen = Dirac.V1hermV2(D.phi, D.phi).Module();
            //        D.Prepare();
            //        for (int i = 0; i < 4; i++)
            //        {
            //            D.Iter();
            //            //Vector v = D.MulD(D.x);
            //            //Text = Dirac.V1hermV2(D.ri, D.ri).ToString();//"Dx = " + Dirac.V1hermV2(v, v).Module() + "   phi = " + philen.ToString();
            //            //Application.DoEvents();
            //        }
            //        tr += Dirac.V1hermV2(D.phi, D.x);
            //        Text = beta.ToString() + " " + k.ToString();

            //        Application.DoEvents();
            //    }

            //    tr *= new Complex(1 / (double)K / (4 * 4 * 4 * 2 * 12 * 2), 0);
            //    Text = tr.ToString();
            //    chart1.Series[0].Points.AddXY(beta, tr.x);

            //}
        }
Esempio n. 2
0
File: SU3.cs Progetto: dptph/lat-qcd
        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]);
            }
        }
Esempio n. 3
0
        private void button12_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);
            Complex res = Complex.Zero;
            Dirac D = new Dirac(Field);

            D.phi.FillRandom();

            DateTime t = DateTime.Now;

            D.Prepare();
            //for (int i = 0; i < 10; i++)
                D.Iter();

            Text = ((DateTime.Now - t).TotalMilliseconds).ToString();
        }