Time：14:00-15:30, Thursday, Apr. 11, 2024

Host: Prof. Hongfei Wang, PI of School of Science, Westlake University

Venue: Lecture Hall, E10-315, Yungu Campus, Westlake University

Prof. Shuiming Hu,

University of Science and Technology of China

E-mail: smhu@ustc.edu.cn

Speaker：

Shui-Ming Hu, born in 1973, received his B.S. (1995) and Ph.D. (2000) from the University of Science and Technology of China (USTC). He was a postdoctoral fellow and visiting scientist at Rice University, Argonne National Laboratory and other institutions. In 2012, he was supported by Outstanding Youth Fund of the National Natural Science Foundation of China. He is currently a professor in the Department of Chemical Physics at USTC, director of the Division of Advanced Measurement Instrument of the Hefei National Research Center for Physical Sciences at the Microscale, and a council member of the Chinese Society for Measurement. His main research interests include the development of high-precision and high-sensitivity laser spectroscopy methods and instruments, precision spectroscopy of atoms and molecules, and applications in chemical kinetics, metrology, and trace gas detection.

Abstract:

Precision spectroscopy of the hydrogen atom, a microscopic two-body system, historically led to the development of quantum mechanics and quantum electrodynamics (QED). Nowadays, more complex many-body systems, such as the helium atom (three-body) and the hydrogen molecule (four-body), are also amenable to full quantum calculations with very high precision based on QED and a few fundamental physical constants. Comparisons between theory and precision measurements of these systems can test QED, determine physical constants, and constrain new theories beyond the Standard Model. However, discrepancies have also been found between results obtained with different methods in different laboratories around the world. In this talk, I will present our recent progress in laser spectroscopy of the helium atom and molecular hydrogen. The techniques developed in these studies are now also finding various applications.

Contact:

School of Science, Li Huang, Email: huangli10@westlake.edu.cn