Interfacing GHz-bandwidth heralded single photons with a warm vapour Raman memory. Michelberger, P., Champion, T., Sprague, M., Kaczmarek, K., Barbieri, M., Jin, X. b, England, D. c, Kolthammer, W., Saunders, D., Nunn, J., & Walmsley, I. New Journal of Physics, 2015. Paper doi abstract bibtex Broadband quantum memories, used as temporal multiplexers, are a key component in photonic quantum information processing, as they make repeat-until-success strategies scalable. We demonstrate a prototype system, operating on-demand, by interfacing a warm vapour, high time-bandwidth-product Raman memory with a travelling wave spontaneous parametric down-conversion source. We store single photons and observe a clear influence of the input photon statistics on the retrieved light, which we find currently to be limited by noise. We develop a theoretical model that identifies four-wave mixing as the sole important noise source and point towards practical solutions for noise-free operation. © 2015 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
@Article{Michelberger2015,
author = {Michelberger, P.S.a , Champion, T.F.M.a , Sprague, M.R.a , Kaczmarek, K.T.a , Barbieri, M.a , Jin, X.M.a b , England, D.G.a c , Kolthammer, W.S.a , Saunders, D.J.a , Nunn, J.a , Walmsley, I.A.a},
journal = {New Journal of Physics},
title = {Interfacing GHz-bandwidth heralded single photons with a warm vapour Raman memory},
year = {2015},
volume = {17},
abstract = {Broadband quantum memories, used as temporal multiplexers, are a key component in photonic quantum information processing, as they make repeat-until-success strategies scalable. We demonstrate a prototype system, operating on-demand, by interfacing a warm vapour, high time-bandwidth-product Raman memory with a travelling wave spontaneous parametric down-conversion source. We store single photons and observe a clear influence of the input photon statistics on the retrieved light, which we find currently to be limited by noise. We develop a theoretical model that identifies four-wave mixing as the sole important noise source and point towards practical solutions for noise-free operation. © 2015 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.},
affiliation = {Clarendon Laboratory, University of Oxford, Parks Road, Oxford, United Kingdom; Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China; National Research Council of Canada, Ottawa, ON, Canada},
art_number = {043006},
author_keywords = {quantum communication; quantum computer; quantum memory; Raman interaction; room-temperature; single photon storage; temporal multiplexer},
document_type = {Article},
doi = {10.1088/1367-2630/17/4/043006},
source = {Scopus},
timestamp = {2016.03.02},
url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84929602809&partnerID=40&md5=daa1e0f2ccc9b69865beeb80e8636624},
}
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