The probability distribution of nuclear spin polarization for ħG = 50 μeV and θ = π/4. The black thick line represents the initial Gaussian distribution. The line with red dots is the probability distribution after a reparation time of 10 ns based on the numerical simulation. The thin blue line is the Gaussian distribution with width σ = σ₀/1300. Other parameters are the same as those in Fig. 2.