Results 31 to 40 of about 165,183 (268)
Frequency-multiplexed entanglement for continuous-variable quantum key distribution [PDF]
Photonics Research, 2021 Quantum key distribution with continuous variables already uses advantageous high-speed single-mode homodyne detection with low electronic noise at room temperature. Together with continuous-variable information encoding to nonclassical states, the distance for secure key transmission through lossy channels can approach 300 km in current optical fibers.
Kovalenko, Olena +6 more
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Long-Distance Continuous-Variable Quantum Key Distribution With Quantum Scissors [PDF]
IEEE Journal of Selected Topics in Quantum Electronics, 2020 The use of quantum scissors, as candidates for non-deterministic amplifiers, in continuous-variable quantum key distribution systems is investigated. Such devices rely on single-photon sources for their operation and as such, they do not necessarily preserve the Guassianity of the channel. Using exact analytical modeling for system components, we bound
Masoud Ghalaii +4 more
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Underwater quantum key distribution with continuous-variable via photon additions
Results in Physics, 2023 Quantum key distribution with continuous-variable (CVQKD) provides an alternative way for the security improvement of underwater optical communication, but facing into the awkward situation of short distance.
Jiali Huang +4 more
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Continuous-Variable Quantum Key Distribution [PDF]
, 2007 Quantum key distribution is a technique in which secret key bits are encoded into quantum states, which are transmitted over a quantum channel (e.g., an optical link) so that the security is guaranteed by the laws of quantum physics. Most experimental realizations to date have relied on discrete protocols, involving ideally single-photons states (or ...
Grosshans, F. +2 more
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High-bit-rate continuous-variable quantum key distribution [PDF]
Physical Review A, 2014 Here, we demonstrate that a practical Continuous Variables Quantum Key Distribution (CVQKD) protocol relying on the Gaussian modulation of coherent states features secret key rates that cannot be achieved with standard qubit Discrete Variables (DV) QKD protocols.
Jouguet, Paul +2 more
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One-Pixel Attack for Continuous-Variable Quantum Key Distribution Systems
Photonics, 2023 Deep neural networks (DNNs) have been employed in continuous-variable quantum key distribution (CV-QKD) systems as attacking detection portions of defense countermeasures.
Yushen Guo, Pengzhi Yin, Duan Huang
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Passive continuous variable quantum key distribution
, 2022 Passive quantum key distribution (QKD) has been proposed for discrete variable protocols to eliminate side channels in the source. Unfortunately, the key rate of passive DV-QKD protocols suffers from sifting loss and additional quantum errors. In this work, we propose the general framework of passive continuous variable quantum key distribution. Rather
Li, Chenyang +4 more
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Theoretical development of discrete-modulated continuous-variable quantum key distribution
Frontiers in Quantum Science and Technology, 2022 Continuous-variable quantum key distribution offers simple, stable and easy-to-implement key distribution systems. The discrete modulation scheme further reduces the technical difficulty.
Wen-Bo Liu +5 more
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Discrete-modulation continuous-variable quantum key distribution with a high key rate
New Journal of Physics, 2023 Discrete-modulation continuous-variable (CV) quantum key distribution has the potential for large-scale deployment in secure quantum communication networks owing to its low implementation complexity and compatibility with the current coherent optical ...
Pu Wang +4 more
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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
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