Results 31 to 40 of about 165,133 (232)

Feasibility of satellite-to-ground continuous-variable quantum key distribution

npj Quantum Information, 2021
Establishing secure communication links at a global scale is a major potential application of quantum information science but also extremely challenging for the underlying technology.
Daniele Dequal, Luis Trigo Vidarte, Victor Roman Rodriguez, Giuseppe Vallone, Paolo Villoresi, Anthony Leverrier, Eleni Diamanti   +6 more
doaj   +1 more source

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

Continuous-variable quantum key distribution in non-Markovian channels [PDF]

, 2010
We address continuous-variable quantum key distribution (QKD) in non-Markovian lossy channels and show how the non-Markovian features may be exploited to enhance security and/or to detect the presence and the position of an eavesdropper along the ...
Maniscalco, Sabrina, Olivares, Stefano, Paris, Matteo G. A, Vasile, Ruggero   +3 more
core   +2 more sources

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

Unidimensional continuous-variable quantum key distribution

, 2015
We propose the continuous-variable quantum key distribution protocol based on the Gaussian modulation of a single quadrature of the coherent states of light, which is aimed to provide simplified implementation compared to the symmetrically modulated ...
Grosshans, Frédéric, Usenko, Vladyslav C.   +1 more
core   +3 more sources

Continuous-Variable Quantum Key Distribution using Thermal States

, 2013
We consider the security of continuous-variable quantum key distribution using thermal (or noisy) Gaussian resource states. Specifically, we analyze this against collective Gaussian attacks using direct and reverse reconciliation where both protocols use
A. S. Holevo, C. C. Gerry, C. E. Shannon, C. H. Bennett, Christian Weedbrook, F. Grosshans, P. Kok, Stefano Pirandola, Timothy C. Ralph   +8 more
core   +1 more source

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

Continuous-variable quantum key distribution over a 15 km multi-core fiber

New Journal of Physics, 2022
The secure transfer of information is critical to the ever-increasing demands of the digital world. Continuous-variable quantum key distribution (CV-QKD) is a promising technology that can provide high secret key rates over metropolitan areas, using ...
S Sarmiento, S Etcheverry, J Aldama, I H López, L T Vidarte, G B Xavier, D A Nolan, J S Stone, M J Li, D Loeber, V Pruneri   +10 more
doaj   +1 more source

Quantum Key Distribution using Continuous-variable non-Gaussian States

, 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., Borelli, L. F. M., Roversi, J. A., Vidiella-Barranco, A.   +3 more
core   +1 more source

Dense-coding quantum key distribution based on continuous-variable entanglement [PDF]

, 2006
We proposed a scheme of continuous-variable quantum key distribution, in which the bright Einstein-Podolsky-Rosen entangled optical beams are utilized. The source of the entangled beams is placed inside the receiving station, where half of the entangled ...
C. E. Shannon, C. H. Bennett, Changde Xie, G. Brassard, Jietai Jing, N. J. Cerf, Qing Pan, Xiaolong Su   +7 more
core   +2 more sources