INNER CODE UNIT · C++

sampled

aromanro/QCSim · QCSim/DensityMatrixTests.cpp:1016

            const double sampled = static_cast<double>(ones) / nrMeasurements;
            if (std::abs(sampled - expectedP1[q]) > 0.05)
            {
                std::cout << "Measurement statistics mismatch for qubit " << q << " with " << nrQubits
                          << " qubits: " << expectedP1[q] << " (analytic) vs " << sampled << " (sampled)" << std::endl;
                return false;
            }
        }
    }

    // DephaseMeasure keeps the populations but removes the coherences between the measured sectors
    {
        QC::DensityMatrix<> dm(1);
        QC::Gates::HadamardGate<> h;
        dm.ApplyGate(h, 0); // |+>: rho = 1/2 [[1,1],[1,1]]

        const double p1Before = dm.GetQubitProbability(0);
        dm.DephaseMeasure(0);

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