Quantum Computing, Quantum, Quantum Physics, Quantum Mechanics, Quantum Computer.
The Quantum Fourier transform So what does the quantum Fourier transform look like for larger N? Let’s derive a transformation for N=2n ,QFT acting on the state |x⟩=|x1,…,xn⟩ where x1 is the most significant bit. This maths is here for those that find it useful, if you struggle with it then don’t