Forum (2022-10): An Online Academic Presentation by Gao Kelin from Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences

Forum (2022-10)

At the invitation of Prof. Huang Tianye of the School of Mechanical Engineering and Electronic Information, Gao Kelin from Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, delivered an online academic presentation.

Presentation title: Development of atomic clocks

Speaker: Gao Kelin

Time: 10:00 am - 11:30 am on June 8, 2022 (Wednesday)

Presentation form: Tencent Meeting, ID: 297800398

About the speaker:

Gao Kelin, researcher, doctoral supervisor, graduated from the Physics Department of Huazhong University of Science and Technology in January 1982 and received his PhD degree from the University of Science and Technology of China in 1990. After graduation, he worked in Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences (now the Innovation Academy for Precision Measurement Science and Technology, CAS). He has successively visited and cooperated with the Department of Physics at the University of Washington, the National Physical Laboratory in the United Kingdom, and the University of Innsbruck in Austria, and is mainly engaged in the research of optical frequency standards based on trapped ions and precision spectroscopy. In 2005, he was appointed by the Ministry of Science and Technology (MOST) as the chief scientist of the “Fundamentals of Atomic Frequency Scale Physics and Technology” project under “973” program; in 2011, he was appointed by MOST as the chief scientist of the “Key Physical Problems and Technical Realization of Optical Frequency Scale” project under "973" program; in 2017, he was appointed by MOST as the chief scientist of the "National Key R&D Program - Quantum Regulation and Quantum Information" - "High Precision Atomic Light Clock".

Presentation summary:

The development of modern science and technology is based on precise experimental measurements. So far, time frequency, as the most precise and accurate unit of measurement among the physical quantities and physical constants involved, determines the definition and accuracy of many other physical quantities and fundamental physical constants. The constant pursuit of precision and accuracy in the study of atomic frequency standards is the driving force for the development of physical science. Precision measurement can not only provide high-precision atomic and molecular data for the development of basic scientific research and advanced technology applications, but also provide precise experimental means for testing the basic theories and laws of physics and measuring physical constants. Meanwhile, the atomic frequency standards have been widely used in various fields of national economy, such as international time benchmark, global positioning system (GPS), launch of satellites, information highway and urban traffic management. Atomic frequency standards play a vital role in national defense and national economy. The development of atomic frequency standards is related to the national measurement standards, national information, national defense construction and other major national needs.

The presentation will briefly introduce the development history of atomic clocks, the main scientific and technological challenges involved in the research of atomic clocks, the current development trends, and the application of atomic clock.

                                                                              School of Mechanical Engineering and Electronic Information

June 6, 2022