Unidimensional continuous-variable quantum key distribution [PDF]
Physical Review A, 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 +1 more
core +5 more sources
Single-Quadrature Continuous-Variable Quantum Key Distribution [PDF]
Quantum Information and Computation, 2015 Most continuous-variable quantum key distribution schemes are based on the Gaussian modulation of coherent states followed by continuous quadrature detection using homodyne detectors.
Andersen, Ulrik L. +2 more
core +5 more sources
Continuous-variable quantum key distribution protocols over noisy channels [PDF]
Physical Review Letters, 2008 A continuous-variable quantum key distribution protocol based on squeezed states and heterodyne detection is introduced and shown to attain higher secret key rates over a noisy line than any other one-way Gaussian protocol.
Cerf, Nicolas J., Garcia-Patron, Raul
core +6 more sources
Multidimensional reconciliation for continuous-variable quantum key distribution [PDF]
Physical Review A, 2008 We propose a method for extracting an errorless secret key in a continuous-variable quantum key distribution protocol, which is based on Gaussian modulation of coherent states and homodyne detection.
A. D. Wyner +9 more
core +9 more sources
Continuous-Variable Quantum Key Distribution using Thermal States [PDF]
Physical Review A, 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 +8 more
core +3 more sources
Continuous-variable quantum key distribution in non-Markovian channels [PDF]
Physical Review A, 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 +3 more
core +7 more sources
Improving free-space continuous variable quantum key distribution with adaptive optics [PDF]
Scientific ReportsA significant performance inhibitor of free-space continuous variable quantum key distribution (CVQKD) is turbulence, which gives rise to wavefront phase and amplitude aberrations.
Mikhael T. Sayat +8 more
doaj +2 more sources
Low-Dimensional Reconciliation for Continuous-Variable Quantum Key Distribution [PDF]
Applied Sciences, 2018 We propose an efficient logical layer-based reconciliation method for continuous-variable quantum key distribution (CVQKD) to extract binary information from correlated Gaussian variables. We demonstrate that by operating on the raw-data level, the noise
Laszlo Gyongyosi, Sandor Imre
doaj +5 more sources
Underwater Wavelength Attack on Discrete Modulated Continuous-Variable Quantum Key Distribution [PDF]
EntropyThe wavelength attack utilizes the dependence of beam splitters (BSs) on wavelength to cause legitimate users Alice and Bob to underestimate their excess noise so that Eve can steal more secret keys without being detected. Recently, the wavelength attack
Kangyi Feng +5 more
doaj +2 more sources
A 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 ...
Anthony Leverrier +3 more
core +2 more sources