Results 51 to 60 of about 14,557,802 (284)

Quantum key distribution with continuous variables

Journal of Modern Optics, 2001
We study a new quantum cryptography protocol with continuous variables for the construction of secret quantum keys.
Bencheikh, K, Symul, Thomas, Jankovic, A, Levenson, J A   +3 more
openaire   +2 more sources

Experimental continuous-variable quantum key distribution using a thermal source

New Journal of Physics, 2021
Gaussian-modulated coherent-state (GMCS) continuous-variable quantum key distribution (CVQKD) protocol can allow authenticated users to share secret key with unconditional security.
Peng Huang, Tao Wang, Rui Chen, Ping Wang, Yingming Zhou, Guihua Zeng   +5 more
doaj   +1 more source

Physical-Layer Security, Quantum Key Distribution and Post-quantum Cryptography

, 2022
The growth of data-driven technologies, 5G, and the Internet place enormous pressure on underlying information infrastructure. There exist numerous proposals on how to deal with the possible capacity crunch.

core   +1 more source

Gaussian non-classical correlations in bipartite dissipative continuous variable quantum systems [PDF]

, 2015
This thesis probes the usefulness of non-classical correlations within imperfect continuous variable decoherent quantum systems. Although a consistent function and practical usefulness of these correlations is largely unknown, it is important to examine ...
Quinn, Niall
core   +1 more source

Noiseless Attenuation for Continuous-Variable Quantum Key Distribution over Ground-Satellite Uplink

Applied Sciences, 2021
Satellite-based quantum key distribution (QKD) has lately received considerable attention due to its potential to establish a secure global network.
Shengjie Xu, Yin Li, Yijun Wang, Yun Mao, Zhiyue Zuo, Xinchao Ruan, Ying Guo   +6 more
doaj   +1 more source

Security Thresholds of Multicarrier Continuous-Variable Quantum Key Distribution [PDF]

CoRR, 2014
We prove the secret key rate formulas and derive security threshold parameters of multicarrier continuous-variable quantum key distribution (CVQKD). In a multicarrier CVQKD scenario, the Gaussian input quantum states of the legal parties are granulated into Gaussian subcarrier CVs (continuous-variables).
Gyongyosi, Laszlo, Imre, Sandor
openaire   +5 more sources

Continuous-variable quantum communication [PDF]

Tremendous progress in experimental quantum optics during the past decades enabled the advent of quantum technologies, one of which is quantum communication.
Alléaume, Romain, Gehring, Tobias, Usenko, Vladyslav, Hajomer, Adnan, Pruneri, Valerio, Pacher, Christoph, Andersen, Ulrik, Diamanti, Eleni, Acín, Antonio, Pirandola, Stefano, Kanitschar, Florian   +10 more
core   +2 more sources

On the problem of non-zero word error rates for fixed-rate error correction codes in continuous variable quantum key distribution

New Journal of Physics, 2017
The maximum operational range of continuous variable quantum key distribution protocols has shown to be improved by employing high-efficiency forward error correction codes.
Sarah J Johnson, Andrew M Lance, Lawrence Ong, Mahyar Shirvanimoghaddam, T C Ralph, Thomas Symul   +5 more
doaj   +1 more source

Symmetrization technique for continuous-variable quantum key distribution [PDF]

Physical Review A, 2012
We introduce a symmetrization technique which can be used as an extra step in some continuous-variable quantum key distribution protocols. By randomizing the data in phase space, one can dramatically simplify the security analysis of the protocols, in particular in the case of collective attacks.
openaire   +2 more sources

Unidimensional continuous-variable quantum key distribution [PDF]

Physical Review A, 2015
7 pages, 5 figures, close to the published ...
Usenko, Vladyslav C., Grosshans, Frédéric   +1 more
openaire   +2 more sources