Author(s): Adrian J. Menssen, Alex E. Jones, Benjamin J. Metcalf, Malte C. Tichy, Stefanie Barz, W. Steven Kolthammer, and Ian A. Walmsley
Two independent groups have provided the first experimental demonstration of genuine three-photon interference.

[Phys. Rev. Lett. 118, 153603] Published Mon Apr 10, 2017