# Quantum algorithm for order finding

by jhendren
Tags: algorithm, order, quantum
 P: 34 I am trying to understand the quantum algorithm for order finding, but I can't find the proof anywhere. Can anyone help? Thanks in advance $\frac{1}{√r}$ Ʃ$^{r-1}_{s=0}$ e$^{2πisk/r}$ |μ$_{s}$> = |x$^{k}$ mod N>