Results 51 to 60 of about 165,183 (268)

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

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

Polarization-agnostic continuous-variable quantum key distribution

Physical Review A
We introduce a polarization agnostic method for Gaussian-modulated coherent state (GCMS) continuous-variable quantum key distribution (CVQKD). Due to the random and continuous nature of the GCMS protocol, Alice, the transmitter, can encode two distinct quadratures in each of two orthogonal polarization modes, such that Bob, the receiver, measures valid
Brian P. Williams, Nicholas A. Peters
openaire   +2 more sources

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +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

The Rationale for the Optimal Continuous-Variable Quantum Key Distribution Protocol

Optics, 2022
This article describes the current technical level of developments in the field of continuous-variable quantum key distribution (CV-QKD). Various classifications are described, the criteria are analyzed, and the optimal protocol is selected. The analysis
Roman Goncharov, Irina Vorontsova, Daniil Kirichenko, Ilya Filipov, Iurii Adam, Vladimir Chistiakov, Semyon Smirnov, Boris Nasedkin, Boris Pervushin, Daria Kargina, Eduard Samsonov, Vladimir Egorov   +11 more
doaj   +1 more source

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

FEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill, Yelyzaveta Pulnova, Elke De Zitter, Helen M. Ginn, Briony A. Yorke   +4 more
wiley   +1 more source

Piezoresistive Monitoring of Carbon Nanomaterial‐Reinforced Epoxy Composites Under Cyclic and Fatigue Loading: A Review

Advanced Engineering Materials, EarlyView.
Carbon nanomaterial‐reinforced epoxy composites exhibit pronounced piezoresistive behavior, enabling intrinsic damage sensing under cyclic and fatigue loading. This review critically compares carbon nanotube and graphene systems, correlating filler content, percolation threshold, and gauge factor with sensing stability and damage evolution.
J. M. Parente, J. Nunes‐Pereira, A. P. Silva, P. N. B. Reis   +3 more
wiley   +1 more source

Diversity space of multicarrier continuous‐variable quantum key distribution [PDF]

International Journal of Communication Systems, 2019
SummaryThe diversity space of multicarrier continuous‐variable quantum key distribution (CVQKD) is defined. The diversity space utilizes the resources that are injected into the transmission by the additional degrees of freedom of the multicarrier modulation.
Laszlo Gyongyosi, Sandor Imre
openaire   +3 more sources