Suppose I have a gate
\begin{bmatrix} 0.91164831+0.39241212j && -0.07144438+0.09902415j \\ -0.07144438+0.09902415j && 0.65985617+0.74140391j \end{bmatrix}
and I want to introduce an error generated by np.random.normal(0,0.001,(2,2)). This noise has to be generated by two parameters: mean and std. The noised gate is not unitary anymore, thus, if to try to add the noised gate to circuit I get an error ExtensionError: 'Input matrix is not unitary.'. How to deal with the random noise introducing to the gates?
