Discrete and continuous variables for measurement-device-independent quantum cryptography

Xu, Feihu; Curty, Marcos; Qi, Bing; Qian, Li; Lo, Hoi-Kwong

doi:10.1038/nphoton.2015.206

Discrete and continuous variables for measurement-device-independent quantum cryptography

Journal Article · Mon Nov 16 00:00:00 EST 2015 · Nature Photonics

DOI:https://doi.org/10.1038/nphoton.2015.206· OSTI ID:1327586

Xu, Feihu ^[1]; Curty, Marcos ^[2]; Qi, Bing ^[3]; Qian, Li ^[4]; Lo, Hoi-Kwong ^[5]

Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Research Lab. of Electronics
Univ. of Vigo, Vigo (Spain). Escuela de Ingenieria de Telecomunicacion, Dept. of Signal Theory and Communications
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Computational Sciences and Engineering Division
Univ. of Toronto, ON (Canada). Dept. of Electrical & Computer Engineering
Univ. of Toronto, ON (Canada). Dept. of Electrical & Computer Engineering

In a recent Article in Nature Photonics, Pirandola et al.1 claim that the achievable secret key rates of discrete-variable (DV) measurementdevice- independent (MDI) quantum key distribution (QKD) (refs 2,3) are “typically very low, unsuitable for the demands of a metropolitan network” and introduce a continuous-variable (CV) MDI QKD protocol capable of providing key rates which, they claim, are “three orders of magnitude higher” than those of DV MDI QKD. We believe, however, that the claims regarding low key rates of DV MDI QKD made by Pirandola et al.1 are too pessimistic. Here in this paper, we show that the secret key rate of DV MDI QKD with commercially available high-efficiency single-photon detectors (SPDs) (for example, see http://www.photonspot.com/detectors and http://www.singlequantum.com) and good system alignment is typically rather high and thus highly suitable for not only long-distance communication but also metropolitan networks.

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: ORNL LDRD Director's R&D

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1327586

Journal Information:: Nature Photonics, Journal Name: Nature Photonics Journal Issue: 12 Vol. 9; ISSN 1749-4885

Publisher:: Nature Publishing GroupCopyright Statement

Country of Publication:: United States

Language:: English

References (9)

Finite-key analysis for measurement-device-independent quantum key distribution Curty, Marcos; Xu, Feihu; Cui, Wei Nature Communications, Vol. 5, Issue 1 https://doi.org/10.1038/ncomms4732	journal	April 2014
Fundamental rate-loss tradeoff for optical quantum key distribution Takeoka, Masahiro; Guha, Saikat; Wilde, Mark M. Nature Communications, Vol. 5, Issue 1 https://doi.org/10.1038/ncomms6235	journal	October 2014
Detecting single infrared photons with 93% system efficiency Marsili, F.; Verma, V. B.; Stern, J. A. Nature Photonics, Vol. 7, Issue 3 https://doi.org/10.1038/nphoton.2013.13	journal	February 2013
Experimental demonstration of long-distance continuous-variable quantum key distribution Jouguet, Paul; Kunz-Jacques, Sébastien; Leverrier, Anthony Nature Photonics, Vol. 7, Issue 5 https://doi.org/10.1038/nphoton.2013.63	journal	April 2013
High-rate measurement-device-independent quantum cryptography Pirandola, Stefano; Ottaviani, Carlo; Spedalieri, Gaetana Nature Photonics, Vol. 9, Issue 6 https://doi.org/10.1038/nphoton.2015.83	journal	May 2015
Side-Channel-Free Quantum Key Distribution Braunstein, Samuel L.; Pirandola, Stefano Physical Review Letters, Vol. 108, Issue 13 https://doi.org/10.1103/PhysRevLett.108.130502	journal	March 2012
Measurement-Device-Independent Quantum Key Distribution Lo, Hoi-Kwong; Curty, Marcos; Qi, Bing Physical Review Letters, Vol. 108, Issue 13 https://doi.org/10.1103/PhysRevLett.108.130503	journal	March 2012
Measurement-Device-Independent Quantum Key Distribution over 200 km Tang, Yan-Lin; Yin, Hua-Lei; Chen, Si-Jing Physical Review Letters, Vol. 113, Issue 19 https://doi.org/10.1103/PhysRevLett.113.190501	journal	November 2014
Composable Security Proof for Continuous-Variable Quantum Key Distribution with Coherent States Leverrier, Anthony Physical Review Letters, Vol. 114, Issue 7 https://doi.org/10.1103/PhysRevLett.114.070501	journal	February 2015

Cited By (9)

Security analysis of passive measurement-device-independent continuous-variable quantum key distribution with almost no public communication Wu, Xiaodong; Wang, Yijun; Li, Sha Quantum Information Processing, Vol. 18, Issue 12 https://doi.org/10.1007/s11128-019-2486-0	journal	November 2019
Practical challenges in quantum key distribution Diamanti, Eleni; Lo, Hoi-Kwong; Qi, Bing npj Quantum Information, Vol. 2, Issue 1 https://doi.org/10.1038/npjqi.2016.25	journal	November 2016
One Step Quantum Key Distribution Based on EPR Entanglement Li, Jian; Li, Na; Li, Lei-Lei Scientific Reports, Vol. 6, Issue 1 https://doi.org/10.1038/srep28767	journal	June 2016
Homodyne-detector-blinding attack in continuous-variable quantum key distribution Qin, Hao; Kumar, Rupesh; Makarov, Vadim Physical Review A, Vol. 98, Issue 1 https://doi.org/10.1103/physreva.98.012312	journal	July 2018
Measurement-Device-Independent Quantum Key Distribution over Untrustful Metropolitan Network Tang, Yan-Lin; Yin, Hua-Lei; Zhao, Qi Physical Review X, Vol. 6, Issue 1 https://doi.org/10.1103/physrevx.6.011024	journal	March 2016
Dual-phase-modulated plug-and-play measurement-device-independent continuous-variable quantum key distribution Liao, Qin; Wang, Yijun; Huang, Duan Optics Express, Vol. 26, Issue 16 https://doi.org/10.1364/oe.26.019907	journal	January 2018
Polarization-multiplexing-based measurement-device-independent quantum key distribution without phase reference calibration Liu, Hongwei; Wang, Jipeng; Ma, Haiqiang Optica, Vol. 5, Issue 8 https://doi.org/10.1364/optica.5.000902	journal	January 2018
Dual-phase-modulated plug-and-play measurement-device-independent continuous-variable quantum key distribution Liao, Qin; Guo, Ying; Wang, Yijun arXiv https://doi.org/10.48550/arxiv.1803.06777	text	January 2018
Homodyne-detector-blinding attack in continuous-variable quantum key distribution Qin, Hao; Kumar, Rupesh; Makarov, Vadim arXiv https://doi.org/10.48550/arxiv.1805.01620	text	January 2018

Similar Records

Detector-device-independent quantum key distribution: Security analysis and fast implementation

Journal Article · Sun Aug 14 00:00:00 EDT 2016 · Journal of Applied Physics · OSTI ID:22597696

Related Subjects

47 OTHER INSTRUMENTATION
Quantum optics

Discrete and continuous variables for measurement-device-independent quantum cryptography

Citation Formats

References (9)

Cited By (9)

Similar Records

Related Subjects