title: Spatial interference between pairs of disjoint optical paths with a single chaotic source.
abstract: We demonstrate a novel second-order spatial interference effect between two indistinguishable pairs of disjoint optical paths from a single chaotic source. Beside providing a deeper understanding of the physics of multi-photon interference and coherence, the effect enables retrieving information on both the spatial structure and the relative position of two distant double-pinhole masks, in the absence of first order coherence. We also demonstrate the exploitation of the phenomenon for simulating quantum logic gates, including a controlled-NOT gate operation.
authors.forename: Michele
authors.initials: M
authors.lastname: Cassano
authors.forename: Milena
authors.initials: M
authors.lastname: D'angelo
authors.forename: Augusto
authors.initials: A
authors.lastname: Garuccio
authors.forename: Tao
authors.initials: T
authors.lastname: Peng
authors.forename: Yanhua
authors.initials: Y
authors.lastname: Shih
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Tamma