Xue Qikun, winner of the 2023 National Highest Science and Technology Award: Pursuing perfection and bravely entering the uncharted territory of science
News: Xue Qikun, winner of the 2023 National Highest Science and Technology Award, is an internationally renowned experimental physicist in the field of condensed matter physics. He has the motherland in mind, regards serving the country through science and technology as his bounden duty, and has devoted himself to basic research on cutting-edge scientific issues, achieving scientific research results that have influenced the world.
![Xue Qikun, winner of the 2023 National Highest Science and Technology Award: Pursuing perfection and bravely entering the uncharted territory of science](https://a5qu.com/upload/images/080b5cae9132532b02ae14f47c16d087.webp)
At the National Key Laboratory of Low-Dimensional Quantum Physics at Tsinghua University, Academician Xue Qikun is analyzing the latest experimental results with his research team. From the first experimental observation of the quantum anomalous Hall effect in 2012 to the present, for 12 years, the team has been continuously advancing basic research on deeper principles and applications, and has continued to make more new progress. The quantum anomalous Hall effect is an important quantum effect in condensed matter physics. Under its action, originally chaotic electrons will become very orderly without relying on strong magnetic fields, that is, without resistance, which may solve the fundamental problem of heating of electronic devices. For a long time, the quantum anomalous Hall effect has only remained at the theoretical level and has not been experimentally confirmed. Can materials that display the quantum anomalous Hall effect be found? In 2009, Xue Qikun led the team to explore this no-man's land.
![Xue Qikun, winner of the 2023 National Highest Science and Technology Award: Pursuing perfection and bravely entering the uncharted territory of science](https://a5qu.com/upload/images/d2c1602b75e094d3de55fbf172a885c9.webp)
Xue Qikun took a unique approach to experimental methods. He innovatively solved the problem of precisely preparing and regulating quantum materials at the atomic level. Subsequently, the team tested more than 1,000 samples, improving the quality of the samples step by step. After continuous and repeated reasoning and experiments, at the end of 2012, Xue Qikun's team observed the quantum anomalous Hall effect experimentally for the first time in the world. This research result was soon published in Science magazine. About a year later, the result was repeated by multiple laboratories around the world in the same system, thus confirming the discovery.
![Xue Qikun, winner of the 2023 National Highest Science and Technology Award: Pursuing perfection and bravely entering the uncharted territory of science](https://a5qu.com/upload/images/e6b58da185476186e9eaebba9912820c.webp)
In the rigorous scientific research process, Xue Qikun also discovered high-temperature superconductivity at the heterojunction interface, opening up a new way to solve the mechanism of high-temperature superconductivity. Now, Xue Qikun and his team continue to work hard to solve major scientific problems such as the mechanism of high-temperature superconductivity, the application of high-temperature quantum anomalous Hall effect and topological quantum states, and the realization of topological quantum computing.
![Xue Qikun, winner of the 2023 National Highest Science and Technology Award: Pursuing perfection and bravely entering the uncharted territory of science](https://a5qu.com/upload/images/8d89328460b7e589a8f54bbdd3cd43d5.webp)
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