# Find the decomposition of the following matrix into two level unitary matrices [duplicate]

Find the decomposition of the following matrix into two level unitary matrices:

$$\frac{1}{2} \begin{pmatrix} 1 & 1 & 1 & 1\\ 1 & i & -1 & -i\\ 1 & -1 & 1 & -1\\ 1 & -i & -1 & i\\ \end{pmatrix}$$