[quick news] on January 11, 2019, IBM released a quantum computer that is said to be "commercially available"

IBM released a quantum computer that is said to be "commercially available" At CES in Las Vegas in 2019, IBM recently released a quantum computer called "IBM Q system 1", which is a model of a quantum computer that is said to be "commercially available" The device, released by IBM, is known as "the world's first fully integrated universal quantum computing system designed for scientific and commercial purposes." It is located in a glass box more than 2 meters high and looks like a chandelier According to IBM, the model can operate 20 qubits Although the number of qubits is less than some previously published systems, this quantum computer has features that "predecessors" did not have, including its design for stability, very compact structure, etc., so its practicability is greatly improved Https:// the first three-dimensional optical topological insulator came out Scientists from Zhejiang University and Nanyang University of technology in Singapore cooperated to build the world's first three-dimensional optical topological insulator On the "highway" of three-dimensional materials, a beam of light ran out of the "Z" shape Topological insulator is a kind of material with conductive surface and internal insulation Inspired by topological insulator, scientists proposed optical topological insulator This time, the joint research group has realized the three-dimensional optical topological insulator for the first time, which has a wide band topological energy gap This kind of three-dimensional optical topology insulator can be made by PCB technology This research may be applied to three-dimensional topological optical integrated circuits, topological waveguides, optical delay lines, topological lasers and other surface electromagnetic wave control devices Https:// researchers found a new carbohydrate in barley scientists at the University of Adelaide in Australia found a new compound carbohydrate, a polysaccharide, in barley This is also the first time that scientists have found this carbohydrate, which is expected to be used in food, medicine and other fields Polysaccharide is a kind of carbohydrate formed by the combination of different simple sugar molecular chains Research shows that the new carbohydrate is basically composed of glucose and xylose Glucose is the most abundant monosaccharide, while xylose is generally found in most edible plant embryos In addition, the researchers also found genes involved in the new polysaccharide biosynthesis, which can be found in all major cereal crops Https:// Chinese scholars have developed a new catalyst for rapid degradation of antibiotics in water, which leads to ecological environment and biosafety problems caused by antibiotic abuse, and has attracted widespread attention Recently, a new and controllable catalyst has been designed by the research team of the Institute of intelligent machinery, Hefei Institute of material science, Chinese Academy of Sciences The catalyst has a significant effect on improving the efficiency of degradation of tetracycline by Fenton system, and also widens the range of the optimal pH of the reaction to neutral This study discussed the mechanism of catalytic degradation in detail, speculated the possible degradation route of tetracycline, solved the problem of difficult degradation of tetracycline, widened the application range of Fenton like reaction, and had a wide application prospect Http:// the top ten overseas network communication forces of China University in 2018 announced that the school of Journalism and communication of Beijing Normal University and the research and release center of Guangming Daily think tank recently jointly launched the report of 2018 overseas network communication forces of China University In 2018, the top 10 universities in mainland China in terms of Internet communication capacity were Peking University, Tsinghua University, China Academy of fine arts, Nanjing University of Aeronautics and Astronautics, Nanjing University, Zhejiang University, Fudan University, Tianjin University, Beijing University of Aeronautics and Astronautics and Sichuan University Traditional comprehensive universities have obvious advantages in overseas network communication Some universities with disciplinary characteristics have developed their own school in recent years, and have formed their own communication advantages in overseas network communication The report points out that the strength of University's overseas network communication mainly depends on its academic influence http://digitalpaper.stdaily.com/http_