Results 21 to 30 of about 165,183 (268)
Quantum Key Distribution using Continuous-variable non-Gaussian States [PDF]
Quantum Information Processing, 2015 In this work we present a quantum key distribution protocol using continuous-variable non-Gaussian states, homodyne detection and post-selection. The employed signal states are the Photon Added then Subtracted Coherent States (PASCS) in which one photon ...
Aguiar, L. S. +3 more
core +2 more sources
Enhancing of Self-Referenced Continuous-Variable Quantum Key Distribution with Virtual Photon Subtraction [PDF]
Entropy, 2018 The scheme of the self-referenced continuous-variable quantum key distribution (SR CV-QKD) has been experimentally demonstrated. However, because of the finite dynamics of Alice’s amplitude modulator, there will be an extra excess noise that is ...
Hai Zhong +5 more
doaj +2 more sources
Continuous variable quantum key distribution with two-mode squeezed states [PDF]
Nature Communications, 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 +29 more
core +4 more sources
Parameter Optimization Based BPNN of Atmosphere Continuous-Variable Quantum Key Distribution [PDF]
Entropy, 2019 The goal of continuous variable quantum key distribution (CVQKD) is to be diffusely used and adopted in diverse scenarios, so the adhibition of atmospheric channel will play a crucial part in constituting global secure quantum communications. Atmospheric
Yu Su, Ying Guo, Duan Huang
doaj +2 more sources
Modulation leakage-free continuous-variable quantum key distribution
npj Quantum Information, 2022 Distributing cryptographic keys over public channels in a way that can provide information-theoretic security is the holy grail for secure communication.
Adnan A. E. Hajomer +5 more
doaj +1 more source
Multiple access multicarrier continuous-variable quantum key distribution [PDF]
Chaos, Solitons & Fractals, 2018 One of the most important practical realizations of the fundamentals of quantum mechanics is continuous-variable quantum key distribution (CVQKD). Here we propose the adaptive multicarrier quadrature division-multiuser quadrature allocation (AMQD-MQA) multiple access technique for continuous-variable quantum key distribution. The MQA scheme is based on
Gyongyosi, Laszlo, Imre, Sandor
openaire +6 more sources
Secure Continuous-Variable Quantum Key Distribution with Machine Learning
Photonics, 2021 Quantum key distribution (QKD) offers information-theoretical security, while real systems are thought not to promise practical security effectively.
Duan Huang, Susu Liu, Ling Zhang
doaj +1 more source
SecurityBounds for Continuous Variables Quantum Key Distribution [PDF]
Physical Review Letters, 2005 Security bounds for key distribution protocols using coherent and squeezed states and homodyne measurements are presented. These bounds refer to (i) general attacks and (ii) collective attacks where Eve interacts individually with the sent states, but delays her measurement until the end of the reconciliation process.
Navascues, Miguel, Acin, Antonio
openaire +4 more sources
npj Quantum Information, 2021 Despite tremendous theoretical and experimental progress in continuous variable (CV) quantum key distribution (QKD), the security has not been rigorously established for most current continuous variable quantum key distribution systems that have ...
Chenyang Li, Li Qian, Hoi-Kwong Lo
doaj +1 more source
Continuous-variable measurement-device-independent quantum key distribution [PDF]
Physical Review A, 2014 9 pages, 6 ...
Li, Zhengyu +4 more
openaire +2 more sources