Search

Your search keyword '"Hao, Wentao"' showing total 380 results
Start Over Author "Hao, Wentao"
380 results on '"Hao, Wentao"'

22. Implementation and Security Analysis of Practical Quantum Secure Direct Communication

Author

Qi, Ruoyang, Sun, Zhen, Lin, Zaisheng, Niu, Penghao, Hao, Wentao, Song, Liyuan, Huang, Qin, Gao, Jiancun, Yin, Liuguo, and Long, Gui-Lu

Subjects
Quantum Physics
Abstract

Fast development of supercomputer and perspective quantum computer is posing increasing serious threats to communication security. Based on the laws of quantum mechanics, quantum communication offers provable security of communication, and is a promising solution to counter such threats. Quantum secure direct communication (QSDC) is one of the important branches of quantum communication. Different from other branches of quantum communication, it transmits secret information directly. Recently, remarkable progress has been made in the proof-of-principle experimental demonstrations of QSDC. However, it remains a technical feast to march QSDC into practical application. Here, we report an implementation of practical quantum secure communication system. The security is analyzed in the Wyner wiretap channel theory. The system uses a coding scheme based on concatenation of low density parity check (LDPC) codes, which works in a regime with realistic environment of high noise and high loss. The present system operates with a repetition rate of 1 MHz, and at a distance of 1.5 kilometers. The secure communication rate is 50 bps, which can effectively send text message and files such as image and sounds with a reasonable size., Comment: 14 pages, 4 figures

Published
2018

30. Co‐Catalyzed Dehydrogenation Claisen Condensation of Secondary Alcohols with Esters†.

Author

Gao, Shuo, Hao, Wentao, Ji, Yuqi, Li, Xiulin, Zhang, Chunyan, and Zhang, Guoying

Subjects
*CLAISEN condensation, *DEHYDROGENATION, *CATALYTIC dehydrogenation, *KETONES, *CHEMOSELECTIVITY
Abstract

Comprehensive Summary Catalytic dehydrogenation, with its exceptional atom economy and chemoselectivity, offers a highly desirable yet challenging approach for converting multiple environmentally friendly alcohols into crucial molecules. Furthermore, the utilization of catalysts based on abundant elements found on Earth for alcohol dehydrogenation to produce acryl ketone holds significant promise as a versatile strategy in synthesizing key building blocks for numerous pharmaceutical applications. The present study describes a practical Co‐catalyzed cascade dehydrogenative Claisen condensation of secondary alcohols with esters, facilitating the synthesis of a wide range of 3‐hydroxy‐prop‐2‐en‐1‐ones. We introduce a catalytic system based on novel and scalable indazole NNP‐ligands coordinated to cobalt for efficient dehydrogenations of secondary alcohols, and propose a plausible reaction mechanism supported by control experiments and labeling studies. Notably, it allows for the streamlined synthesis of multiple pharmaceuticals in one‐pot. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results