Results 31 to 40 of about 8,299 (155)

Advances in Chip-Based Quantum Key Distribution

Entropy, 2022
Quantum key distribution (QKD), guaranteed by the principles of quantum mechanics, is one of the most promising solutions for the future of secure communication.
Qiang Liu, Yinming Huang, Yongqiang Du, Zhengeng Zhao, Minming Geng, Zhenrong Zhang, Kejin Wei   +6 more
doaj   +1 more source

An Integrated Photonic Chip of Measurement-Device-Independent Quantum Key Distribution (MDI-QKD) [PDF]

Conference on Lasers and Electro-Optics, 2020
An integrated chip of MDI-QKD system is demonstrated. The system generates a key rate per pulse of 2.923 × 10−6 over a distance corresponding to 50-km optical fibre with 25% detection efficiency.
Cao, Lin, Luo, Wei, Wang, Yun Xiang, Zou, Jun, Yan, Ru Dai, Cai, Hong, Hu, Xiao Long, Jiang, Cong, Zhou, Xiao Qi, Sun, Shi Hai, Wang, Xiang Bin, Jin, Yu Feng, Kwek, Leong Chuan, Liu, Ai Qun   +13 more
openaire   +3 more sources

Hong-Ou-Mandel interference between independent III-V on silicon waveguide integrated lasers [PDF]

, 2019
The versatility of silicon photonic integrated circuits has led to a widespread usage of this platform for quantum information based applications, including Quantum Key Distribution (QKD).
Agnesi, C., Bacco, D., Bakir, B. Ben, Cardi, L., Cozzolino, D., Da Lio, B., Della Frera, A., Ding, Y., Giudice, A., Hassan, K., Rottwitt, K., Ruggeri, A., Tosi, A., Vallone, G., Villoresi, P.   +14 more
core   +2 more sources

Full-field implementation of a perfect eavesdropper on a quantum cryptography system [PDF]

, 2011
Quantum key distribution (QKD) allows two remote parties to grow a shared secret key. Its security is founded on the principles of quantum mechanics, but in reality it significantly relies on the physical implementation.
A Kerckhoffs, A Lamas-Linares, A Ling, A Vakhitov, C Kurtsiefer, C Kurtsiefer, C Wiechers, C-HF Fung, CH Bennett, D Gottesman, D Stucki, F Xu, I Marcikic, JG Rarity, L Lydersen, L Lydersen, MP Peloso, N Lütkenhaus, R Ursin, RJ Hughes, S Félix, S Nauerth, V Makarov, V Makarov, V Scarani, Y Zhao, Ø Marøy   +26 more
core   +2 more sources

Overview of quantum key distribution metropolitan optical networking technology

Tongxin xuebao, 2019
Quantum key distribution is a basic implementation technology of quantum communication,which provides a secure key distribution method.With the maturity and development of point-to-point quantum key distribution technology,multi-point to multi-point ...
Hua WANG, Yongli ZHAO
doaj   +2 more sources

Phase-matching quantum key distribution with advantage distillation

New Journal of Physics, 2022
Phase-matching quantum key distribution (PM-QKD) provides a promising solution to surpass the fundamental rate–distance bound without quantum repeaters.
Rui-Qiang Wang, Chun-Mei Zhang, Zhen-Qiang Yin, Hong-Wei Li, Shuang Wang, Wei Chen, Guang-Can Guo, Zheng-Fu Han   +7 more
doaj   +1 more source

Ring-Based Quantum Network with Quantum Key Distribution (QKD) and Quantum Digital Signature (QDS)

IOP Conference Series: Materials Science and Engineering, 2021
Abstract Quantum technological developments offers a great promise for implementing secure quantum internet. In this study, we propose a ring topology-based quantum network with QKD and QDS for the quantum internet. The combination of QKD and QDS allows both the detection of the intruder and the increase in security in the network.
Osman Ceylan, Ihsan Yilmaz
openaire   +2 more sources

Multiplexing Quantum and Classical Channels of a Quantum Key Distribution (QKD) System by Using the Attenuation Method

Photonics, 2023
The primary goal in this paper is to verify the possibility of combining a quantum channel into a single optical fiber with other classical channels by using the so-called attenuation method. Since the quantum channel is very weak in terms of power, combining it into a single fiber with much more powerful classical channels is challenging.
Ondrej Klicnik, Petr Munster, Tomas Horvath   +2 more
openaire   +3 more sources

Hybrid Continuous-discrete Variable Quantum Key Distribution

Guangtongxin yanjiu, 2023
As one of the main applications of quantum cryptography, Quantum Key Distribution (QKD) is a promising secure key transmission method. Compared with traditional communication methods, QKD protocols based on the basic principles of quantum mechanics have ...
JIN An-ran, LI He
doaj  

Limitations on Quantum Key Repeaters

, 2015
A major application of quantum communication is the distribution of entangled particles for use in quantum key distribution (QKD). Due to noise in the communication line, QKD is in practice limited to a distance of a few hundred kilometres, and can only ...
Bäuml, Stefan, Christandl, Matthias, Horodecki, Karol, Winter, Andreas   +3 more
core   +1 more source