Quantum secure direct communication in Internet of Vehicles.

The Internet of Vehicles (IoVs) is one of the most popular techniques among the applications of Internet of Things. The existing IoVs are mainly protected by public key cryptographic systems, which provide identity authentication and information security. Nevertheless, using the proposed Shor's algorithm, the security of all classical cryptographic schemes will be exposed to future quantum computer technologies.

Degradation of 2, 4-dichlorophenol by peroxymonosulfate catalyzed by ZnO/ZnMn O.

In this study, a highly efficient peroxymonosulfate (PMS) activator, ZnO/ZnMn O , was synthesized using a simple one-step hydrothermal method. The resulting bimetallic oxide catalyst demonstrated a homogenous and high-purity composition, showcasing synergistic catalytic activity in activating PMS for degrading 2, 4-dichlorophenol (2, 4-DCP) in aqueous solution. This catalytic performance surpassed that of individual ZnO, Mn O , and ZnMn O metal materials.

Quantum digital signature with unidimensional continuous-variable against the measurement angular error.

The continuous-variable quantum digital signature (CV-QDS) scheme relies on the components of quantum key generation protocol (KGP) to negotiate classical signature, which is more compatible with optical fibers. Nevertheless, the measurement angular error of heterodyne detection or homodyne detection will cause security issues when performing KGP in the distribution stage. For that, we propose to utilize unidimensional modulation in KGP components, which only requires to modulate single quadrature and without the process of basis choice.

Multiparty quantum anonymous voting with discrete modulated coherent states and an optical frequency comb.

A key challenge for quantum information science is to realize large-scale, precisely controllable, practical systems for multiparty secure communications. Recently, Guidry etal. [Nat.

Study on the catalytic degradation of Acid Orange 7 and the potential mechanism by ferrous-percarbonate.

Factors affecting the degradation of Acid Orange 7 (AO7) were evaluated and optimized when ferrous was used to catalyze percarbonate in the present study. The optimized conditions included the initial pH values ranging from 3 to 11 for AO7 solution, the initial level of AO7, sodium percarbonate (SPC), and Fe . Some ions and natural organic materials, which commonly exist in natural water, were also tested to evaluate their potential impacts on the degradation of AO7.

High-Rate Continuous-Variable Quantum Key Distribution with Orbital Angular Momentum Multiplexing.

The secret key rate is one of the main obstacles to the practical application of continuous-variable quantum key distribution (CVQKD). In this paper, we propose a multiplexing scheme to increase the secret key rate of the CVQKD system with orbital angular momentum (OAM). The propagation characteristics of a typical vortex beam, involving the Laguerre-Gaussian (LG) beam, are analyzed in an atmospheric channel for the Kolmogorov turbulence model.

The temporal distribution, source and potential toxicity of polycyclic aromatic hydrocarbons in a sediment core from an urban lake in Wuhan, China.

The urban lakes in China, especially those with relatively small areas and closed watersheds, have suffered from serious pollution and are at a high risk of eutrophication due to the small amount of concern given to them. The temporal distribution profile, source apportionment and potential toxicity of parent polycyclic aromatic hydrocarbons (PAHs) and alkylated PAHs (APAHs) in a sediment core from an urban shallow lake with the above specifications, in the middle and lower reaches of the Yangtze River, China, were investigated in the present study. Parent PAHs, especially 4-6 ring ones, were dominant in the sediment core.