Quantum Computing.
equation 8 can now be simplified as Equation 11 By iterating each kₜ over 0 and 1, we get all values of k from 0 to 2^n-1 Equation 12 By moving summation of kₜ over 0 and 1 inside product, we get Equation 13 This is the form of quantum FFT we use to build quantum circuits using standard Rₖ