The 9th Institute of Particle Physics (IOPP) Colloquium was held in Building 9  Room 409 at Central China Normal University. Professor Bin Chen from Ningbo University delivered an entertaining talk titled "The Wonderful Physics of Black Holes" to faculty and students of IOPP.

The talk began with the historical development of the gravitational theory, systematically tracing the evolution from Galileo's principle of relativity to Einstein's general relativity. Through vivid illustrations of major scientific discoveries in recent years, Professor Chen demonstrated the unique characteristics of black holes as extremely relativistic objects.

In main part of his talk, Professor Chen focused on black hole formation mechanisms and observational evidence. He explained the stellar gravitational collapse process through the Oppenheimer-Snyder model and illustrated advances in modern astrophysics using the latest observational achievements, including the first black hole images captured by the Event Horizon Telescope. The talk also covered frontier topics such as Hawking radiation and the information loss paradox, as well as the new era of multi-messenger astronomy initiated by LIGO's gravitational wave detection. Professor Chen showcased the latest progress in black hole physics research through abundant graphical materials and data analysis.

During the discussion session with PhD students, Professor Chen had an in-depth interaction with young researchers on hot topics including primordial black holes and dark matter detection. He particularly emphasized that "black hole research provides a unique window for understanding quantum gravity, where simple macroscopic parameters conceal profound physical laws."

Professor Xin-Nian Wang, Director of C3NT and IOPP, presented Professor Bin Chen with

the 9th IOPP Colloquium Commemorative plaque

The IOPP Colloquium organized by the Institute strives to provide a platform of academic exchange for both faculty and students. This presentation demonstrated the deep integration of theoretical and experimental physics through the unique perspective of black hole physics, contributing significantly to the academic environmental development of the Institute.

Bin Chen, Professor at the Institute of Fundamental Physics and Quantum Science and Technology, Ningbo University, graduated from the Department of Modern Physics, University of Science and Technology of China in 1992, and obtained his Ph.D. in Science from the Institute of Theoretical Physics, Chinese Academy of Sciences in 1997. After that, he conducted postdoctoral research in Japan, Italy and other countries and returned to China in 2003. He joined the Instituteof Theoretical Physics, School of Physics, Peking University in 2005, and was a Boya Distinguished Professor and doctoral supervisor of the School of Physics, Peking University. Hejoined Ningbo University in 2024. He has presided over several NSFC projects including the onefor Distinguished Young Scholars, one Key Program and four General Programs. His researchfields include string theory, quantum field theory, black hole physics and cosmology. He haspublished more than 200 scientific research papers.

Group Photo of the 9th IOPP Colloquium

Correspondent: Xiangyu Shui

Proofreader: Xinqiang Li