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The prospects for the application of quantum communication technologies in substations

Zhejiang dianli
As a branch of quantum information technology， quantum communication technologies hold significant value for enhancing communication security in future substations.
LI Xinyu, WANG Song, RUAN Lixiang, XU Feng   +3 more
doaj   +1 more source

Coexistence of quantum key distribution and optical communication with amplifiers over multicore fiber

Nanophotonics, 2023
In this paper, the influence of classical signals on quantum key distribution (QKD) is studied over multi-core fiber (MCF) when optical amplifiers exist.
Kong Weiwen, Sun Yongmei, Gao Yaoxian, Ji Yuefeng   +3 more
doaj   +1 more source

Benchmark Performance of Digital QKD Platform Using Quantum Permutation Pad

IEEE Access, 2022
Quantum permutation pad or QPP is a set of quantum permutation gates. QPP has been demonstrated for quantum secure encryption in both classical and quantum computing systems recently, even at a noisy 5-qubit IBMQ systems. In a classical computing system,
Dafu Lou, Alex He, Michael Redding, Marc Geitz, Ryan Toth, Ronny Doring, Richard Carson, Randy Kuang   +7 more
doaj   +1 more source

Continuous variable quantum key distribution with two-mode squeezed states

, 2012
Quantum key distribution (QKD) enables two remote parties to grow a shared key which they can use for unconditionally secure communication [1]. The applicable distance of a QKD protocol depends on the loss and the excess noise of the connecting quantum ...
C Silberhorn, C Weedbrook, C Weedbrook, Ch Weedbrook, D Gottesman, F Grosshans, F Grosshans, F Grosshans, J Lodewyck, M Hillery, M Navascues, MD Reid, MM Wolf, NJ Cerf, P Jouguet, P Jouguet, R Dong, R García-Patron, R García-Patrón, R Renner, S Lorenz, S Pirandola, S Pirandola, SL Braunstein, TC Ralph, V Scarani, VC Usenko, VC Usenko, X Su, Y Shen   +29 more
core   +1 more source

Practical gigahertz quantum key distribution robust against channel disturbance

, 2018
Quantum key distribution (QKD) provides an attractive solution for secure communication. However, channel disturbance severely limits its application when a QKD system is transfered from the laboratory to the field.
Chen, Wei, Fan-Yuan, Guan-Jie, Guo, Guang-Can, Han, Zheng-Fu, Hao, Peng-Lei, He, De-Yong, Hui, Cong, Kuang, Jie, Liu, Shu-Feng, Wang, Chao, Wang, Shuang, Wang, Yong-Gang, Yin, Zhen-Qiang, Zhang, Li-Jun, Zhou, Zheng   +14 more
core   +1 more source

Advances in Position‐Momentum Entanglement: A Versatile Tool for Quantum Technologies

Laser &Photonics Reviews, EarlyView.
Position–momentum entanglement constitutes a high‐dimensional continuous‐variable resource in quantum optics. Recent advances in its generation, characterization, and control are reviewed, with emphasis on spontaneous parametric down‐conversion and modern measurement techniques.
Satyajeet Patil, Rajshree Swarnkar, Jonas L. Moos, Sebastian Töpfer, Sergio Tovar‐Pérez, Jorge Fuenzalida, Markus Gräfe   +6 more
wiley   +1 more source

Twin-field quantum key distribution with passive-decoy state

New Journal of Physics, 2020
Twin-Field quantum key distribution (TF-QKD) and its variants, e.g. phase-maching QKD, sending-or-not-sending QKD, and no phase post-selection TFQKD promise high key rates at long distance to beat the rate distance limit without a repeater.
Jun Teng, Feng-Yu Lu, Zhen-Qiang Yin, Guan-Jie Fan-Yuan, Rong Wang, Shuang Wang, Wei Chen, Wei Huang, Bing-Jie Xu, Guang-Can Guo, Zheng-Fu Han   +10 more
doaj   +1 more source

Upper bounds for the secure key rate of decoy state quantum key distribution [PDF]

, 2009
The use of decoy states in quantum key distribution (QKD) has provided a method for substantially increasing the secret key rate and distance that can be covered by QKD protocols with practical signals.
D. Gottesman, G. S. Vernam, H.-K. Lo, Hoi-Kwong Lo, M. Dušek, Marcos Curty, Norbert Lütkenhaus, O. Kern, S. Boyd, Tobias Moroder, Xiongfeng Ma, Y. Zhao   +11 more
core   +1 more source

Satellite-Based QKD

Optics and Photonics News, 2018
A global network of spacecraft and ground stations, distributing secret encryption keys by means of quantum technology, could meet emerging and long-term threats to data security.
Khan, I., Heim, B., Neuzner, A., Marquardt, C.   +3 more
openaire   +2 more sources

Model‐Based Systems Engineering in Space Applications: A Comprehensive Literature Review

Systems Engineering, EarlyView.
ABSTRACT The growing complexity of space engineering is driving the demand to embrace the adoption of Model‐Based Systems Engineering (MBSE). Although the MBSE is well‐practiced in the space industry, the level of effort and need required to obtain the benefits of MBSE vastly differ across enterprises; this disparity presents a significant challenge to
Rehobot Bekele Buruso, Sara Himmiche, Taiwo Tejumola, Yeshirun Alemayehu, Bertrand Rose   +4 more
wiley   +1 more source