1Centre for Quantum Optical Technologies, Centre of New Technologies, University of Warsaw, Banacha 2c, 02-097 Warsaw, Poland
2ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels (Barcelona), Spain
3H. H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol, BS8 1TL, United Kingdom
4Laboratoire d’Information Quantique, Université libre de Bruxelles (ULB), 1050 Bruxelles, Belgium
5Faculty of Physics, University of Warsaw, Pasteura 5, 02-093 Warszawa, Poland
6ICREA-Institució Catalana de Recerca i Estudis Avançats, Lluis Companys 23, 08010 Barcelona, Spain
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Abstract
$textit{Device-independent quantum key distribution}$ protocols allow two honest users to establish a secret key with minimal levels of trust on the provider, as security is proven without any assumption on the inner working of the devices used for the distribution. Unfortunately, the implementation of these protocols is challenging, as it requires the observation of a large Bell-inequality violation between the two distant users. Here, we introduce novel photonic protocols for device-independent quantum key distribution exploiting $textit{single-photon sources}$ and $textit{heralding-type architectures}$. The heralding process is designed so that transmission losses become irrelevant for security. We then show how the use of single-photon sources for entanglement distribution in these architectures, instead of standard entangled-pair generation schemes, provides significant improvements on the attainable key rates and distances over previous proposals. Given the current progress in single-photon sources, our work opens up a promising avenue for device-independent quantum key distribution implementations.
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Cited by
[1] G. Murta, S. B. van Dam, J. Ribeiro, R. Hanson, and S. Wehner, “Towards a realization of device-independent quantum key distribution”, Quantum Science and Technology 4 3, 035011 (2019).
[2] Yoshiaki Tsujimoto, Chenglong You, Kentaro Wakui, Mikio Fujiwara, Kazuhiro Hayasaka, Shigehito Miki, Hirotaka Terai, Masahide Sasaki, Jonathan P. Dowling, and Masahiro Takeoka, “Heralded amplification of nonlocality via entanglement swapping”, New Journal of Physics 22 2, 023008 (2020).
[3] Camille Papon, Xiaoyan Zhou, Henri Thyrrestrup, Zhe Liu, Søren Stobbe, Rüdiger Schott, Andreas D. Wieck, Arne Ludwig, Peter Lodahl, and Leonardo Midolo, “Nanomechanical single-photon routing”, Optica 6 4, 524 (2019).
[4] Peter J. Brown, Sammy Ragy, and Roger Colbeck, “A framework for quantum-secure device-independent randomness expansion”, arXiv:1810.13346.
[5] Víctor Zapatero and Marcos Curty, “Long-distance device-independent quantum key distribution”, Scientific Reports 9, 17749 (2019).
[6] Sumanta Das, Liang Zhai, Mantas Čepulskovskis, Alisa Javadi, Sahand Mahmoodian, Peter Lodahl, and Anders S. Sørensen, “A wave-function ansatz method for calculating field correlations and its application to the study of spectral filtering and quantum dynamics of multi-emitter systems”, arXiv:1912.08303.
[7] Ravitej Uppu, Freja T. Pedersen, Ying Wang, Cecilie T. Olesen, Camille Papon, Xiaoyan Zhou, Leonardo Midolo, Sven Scholz, Andreas D. Wieck, Arne Ludwig, and Peter Lodahl, “Scalable integrated single-photon source”, arXiv:2003.08919.
[8] Hélène Ollivier, Ilse Maillette de Buy Wenniger, Sarah Thomas, Stephen Wein, Guillaume Coppola, Abdelmounaim Harouri, Paul Hilaire, Clément Millet, Aristide Lemaître, Isabelle Sagnes, Olivier Krebs, Loïc Lanco, Juan Carlos Loredo, Carlos Antón, Niccolo Somaschi, and Pascale Senellart, “Reproducibility of high-performance quantum dot single-photon sources”, arXiv:1910.08863.
[9] Ravitej Uppu, Hans T. Eriksen, Henri Thyrrestrup, Aslı D. Uğurlu, Ying Wang, Sven Scholz, Andreas D. Wieck, Arne Ludwig, Matthias C. Löbl, Richard J. Warburton, Peter Lodahl, and Leonardo Midolo, “On-chip deterministic operation of quantum dots in dual-mode waveguides for a plug-and-play single-photon source”, arXiv:2001.10716.
The above citations are from SAO/NASA ADS (last updated successfully 2020-06-03 16:15:16). The list may be incomplete as not all publishers provide suitable and complete citation data.
On Crossref’s cited-by service no data on citing works was found (last attempt 2020-06-03 16:15:15).
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Source: https://quantum-journal.org/papers/q-2020-04-30-260/
