Testing multi-photon interference on a silicon chip.

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2019
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Abstract
Multi-photon interference in large multi-port interferometers is key to linear optical quantum computing and in particular to boson sampling. Silicon photonics enables complex interferometric circuits with many components in a small footprint and has the potential to extend these experiments to larger numbers of interfering modes. However, loss has generally limited the implementation of multi-photon experiments in this platform. Here, we make use of high-efficiency grating couplers to combine bright and pure quantum light sources based on ppKTP waveguides with silicon circuits. We interfere up to 5 photons in up to 15 modes, verifying genuine multi-photon interference by comparing the results against various models including partial distinguishability between photons.
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bell2019testingoptics Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Bell, Bryn A;Thekkadath, Guillaume S;Ge, Renyou;Cai, Xinlun;Walmsley, Ian A;
Journal Optics express
Year 2019
DOI
10.1364/OE.27.035646
URL
Keywords
spectroscopy biomedical sensor control setup mode competition optical design

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