Spatial interference between pairs of disjoint optical paths with a single chaotic source
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Cassano, Michele, Milena D’Angelo, Augusto Garuccio, Tao Peng, Yanhua Shih, and Vincenzo Tamma. “Spatial Interference between Pairs of Disjoint Optical Paths with a Single Chaotic Source.” Optics Express 25, no. 6 (2017): 6589–603. https://doi.org/10.1364/OE.25.006589.
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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.