Results 61 to 70 of about 1,030,100 (373)

Breaking the Rate-Loss Bound of Quantum Key Distribution with Asynchronous Two-Photon Interference [PDF]

PRX Quantum, 2021
Twin-field quantum key distribution can overcome the secret key capacity of repeaterless quantum key distribution via single-photon interference. However, to compensate for the channel fluctuations and lock the laser fluctuations, the techniques of phase ...
Yuan-Mei Xie, Yu-Shuo Lu, Chenkai Weng, Xiao-Yu Cao, Zhao Jia, Yu Bao, Yang Wang, Yao Fu, Hua‐Lei Yin, Zeng‐Bing Chen   +9 more
semanticscholar   +1 more source

Zero-error attack against coherent-one-way quantum key distribution

New Journal of Physics, 2021
Coherent-one-way (COW) quantum key distribution (QKD) held the promise of distributing secret keys over long distances with a simple experimental setup. Indeed, this scheme is currently used in commercial applications.
Róbert Trényi, Marcos Curty
doaj   +1 more source

Practical continuous-variable quantum key distribution with composable security [PDF]

Nature Communications, 2021
A quantum key distribution (QKD) system must fulfill the requirement of universal composability to ensure that any cryptographic application (using the QKD system) is also secure.
N. Jain, Hou-Man Chin, Hossein Mani, C. Lupo, D. Nikolic, A. Kordts, S. Pirandola, T. Pedersen, Matthias Kolb, B. Omer, C. Pacher, T. Gehring, U. Andersen   +12 more
semanticscholar   +1 more source

Increasing the Protocol Gain of Quantum Cryptography [PDF]

Engineering and Technology Journal, 2013
Quantum cryptography is a technique to distribute a sequence of truly random and unconditionally secure bits over a secure communication by applying the phenomena of quantum physics.
Firas Ali Sabir Al-Juboori, Noor Kareem Juma, a Al-Mandilawi   +2 more
doaj   +1 more source

Detector decoy quantum key distribution [PDF]

, 2008
Photon number resolving detectors can enhance the performance of many practical quantum cryptographic setups. In this paper, we employ a simple method to estimate the statistics provided by such a photon number resolving detector using only a threshold ...
Bazaraa M S, Bennett C H, Brassard G Mor T Sanders B C, Brida G Genovese M Gramegna G Meda A Olivares S Paris M G A Piacentini F Predazzi E Traina P, Dušek M, Erven C Couteau C Laflamme R Weihs G, Fung C H F Tamaki K Qi B Lo H K Ma X, Gottesman D, Koashi M, Koashi M Adachi Y Yamamoto T Imoto N, Ling A Peloso M P Marcikic I Scarani V Lamas-Linares A Kurtsiefer C, Lo H K, Lundeen J S Feito A Coldenstrodt-Ronge H Pregnell K L Silberhorn C Ralph T C Eisert J Plenio M B Walmsley I A, Lydersen L Skaar J, Marcos Curty, Mayers D, Norbert Lütkenhaus, Peng X Jiang H Xu B Ma X Guo H, Qi B, Ribordy G, Scarani V Bechmann-Pasquinucci H Cerf N J Dušek M Lütkenhaus N Peev M, Stucki D, Tamaki K Lütkenhaus N Koashi M Batuwantudawe J, Tobias Moroder, Tsurumaru T Tamaki K, Ursin R   +25 more
core   +1 more source

Phase-Matching Quantum Key Distribution

Physical Review X, 2018
Quantum key distribution allows remote parties to generate information-theoretic secure keys. The bottleneck throttling its real-life applications lies in the limited communication distance and key generation speed, due to the fact that the information ...
Xiongfeng Ma, Pei Zeng, Hongyi Zhou
doaj   +1 more source

Security of quantum key distribution with intensity correlations [PDF]

Quantum, 2021
The decoy-state method in quantum key distribution (QKD) is a popular technique to approximately achieve the performance of ideal single-photon sources by means of simpler and practical laser sources.
Víctor Zapatero, Álvaro Navarrete, K. Tamaki, M. Curty   +3 more
semanticscholar   +1 more source

Continuous-mode quantum key distribution with digital signal processing [PDF]

npj Quantum Information, 2022
Continuous-variable quantum key distribution (CVQKD) offers the specific advantage of sharing keys remotely by the use of standard telecom components, thereby promoting cost-effective and high-performance metropolitan applications.
Ziyang Chen, Xiangyu Wang, Song Yu, Zhengyu Li, Hong Guo   +4 more
semanticscholar   +1 more source

Practical issues of twin-field quantum key distribution

New Journal of Physics, 2019
Twin-field quantum key distribution(TF-QKD) protocol and its variants, such as phase-matching QKD, sending-or-not-sending QKD and no phase post-selection TF-QKD(NPP-TFQKD), are very promising for long-distance applications.
Feng-Yu Lu, Zhen-Qiang Yin, Rong Wang, Guan-Jie Fan-Yuan, Shuang Wang, De-Yong He, Wei Chen, Wei Huang, Bing-Jie Xu, Guang-Can Guo, Zheng-Fu Han   +10 more
doaj   +1 more source

Higher-rate relativistic quantum key distribution

Scientific Reports, 2021
One of the major problems in the field of quantum key distribution (QKD) is the low key rates at which the systems operate. The reasons for this are the processes used to ensure the key distribution itself: sifting, parameter estimation, key ...
Georgi Bebrov
doaj   +1 more source