I have a specific 4-qubit 16x16 unitary matrix $U$ with $9$ parameters. My goal is to find a gate decomposition in terms of e.g. {Rx, Ry, Rz, CNOT}. I feel like there must be a brute force way to find that, but the parametrization is making it non-trivial. Would appreciate any pointers, input or help regarding that :-)
Thank you in advance! Kind regards, Korbinian
