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Exploring the limits of multiplexed photon-pair sources for the preparation of pure single-photon states


Reference:

Francis-Jones, R. J. A. and Mosley, P. J., 2014. Exploring the limits of multiplexed photon-pair sources for the preparation of pure single-photon states. Preprint at arxiv

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    Abstract

    Current sources of heralded single photons based on nonlinear optics operate in a probabilistic manner. In order to build quantum-enhanced devices based around the use of single photons, compact, turn-key and deterministic sources are required. A possible solution is to multiplex a number of sources to increase the single-photon generation probability and in so doing reducing the waiting time to deliver large numbers of photons simultaneously, from independent sources. Previously it has been shown that, in the ideal case, 17 multiplexed sources allow deterministic generation of heralded single photons [Christ and Silberhorn, Phys. Rev. A 85, 023829 (2012)]. Here we extend this analysis to include undesirable effects of detector inefficiency and photon loss on a number of multiplexed sources using a variety of different detectors for heralding. We compare these systems for fixed signal-to-noise ratio to allow a direct comparison of performance for real- world heralded single photon sources.

    Details

    Item Type Articles
    CreatorsFrancis-Jones, R. J. A.and Mosley, P. J.
    Related URLs
    URLURL Type
    http://arxiv.org/abs/1409.1394v2Free Full-text
    Uncontrolled Keywordsquant-ph
    DepartmentsFaculty of Science > Physics
    Research CentresCentre for Photonics and Photonic Materials
    EPSRC Centre for Doctoral Training in Statistical Mathematics (SAMBa)
    RefereedNo
    StatusPublished
    ID Code51548
    Additional Information10 pages, 7 figures. Equation 18 changed to include power of a half in the binomial factor

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