ar X iv : 0 81 0 . 38 49 v 1 [ he p - th ] 2 1 O ct 2 00 8 Duality between Wilson Loops and Scattering Amplitudes ∗

We summarise the status of an intriguing new duality between planar maximally helicity violating scattering amplitudes and light-like Wilson loops in N = 4 super Yang-Mills. In particular, we focus on the role played by (dual) conformal symmetry, which is made predictive by deriving anomalous conformal Ward identities for the Wilson loops. Assuming the duality, the conformal symmetry of the dual Wilson loops becomes an unexpected new symmetry of scattering amplitudes in N = 4 SYM.