Liu Yang, a renowned mathematician and physicist, has passed away on the morning of June 26, 2021, at the age of 74. She was known for her contributions to the field of theoretical physics, particularly in the area of quantum gravity.

Born in Jiangsu Province, China, Liu graduated from Peking University with a degree in mathematics in 1985. She then went on to obtain a Ph.D. in physics from the same university in 1991. After completing her studies, she joined the faculty of Tsinghua University, where she spent most of her career.

One of Liu's notable achievements is her work on the theory of quantum gravity. In particular, she made significant contributions to the study of black holes and their properties. Her research has been instrumental in advancing our understanding of these complex objects and has helped pave the way for future advancements in this field.

In addition to her academic pursuits, Liu was also involved in promoting science education and outreach. She served as a member of the Chinese Academy of Sciences (CAS) and was a professor at Tsinghua University. She also co-founded the "Mathematics Education and Research Center" at Tsinghua University.

Liu's passing is a great loss to the scientific community, but her legacy will live on through her contributions to the field of theoretical physics and her commitment to promoting science education and outreach. Her death marks the end of an era, but it also serves as a reminder of the importance of preserving the memory of those who have left us with such a profound impact on the world of science.

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