# Tag Info

It is possible to employ a method presented in Transformation of quantum states using uniformly controlled rotations. The article shows (besides) how to implement gate controlled by $n$ qubits and yielding a state $$|\psi\rangle_{n+1} = |i\rangle_{n}\Big(\sqrt{1-f(i)}|0\rangle + \sqrt{f(i)}|1\rangle\Big),$$ where $i$ is a binary representation of $n$ ...