Xiaosong Li of the University of Washington is supported by the Chemical Theory, Models, and Computational Methods program in the Division of Chemistry to develop advanced computational methods for understanding quantum phenomena driven by magnetic fields. These magnetic-field-induced processes are fundamental to breakthroughs in chemical transformations, quantum materials, and quantum information science, with broad applications that can benefit society. Xiaosong Li will simulate microscopic quantum dynamics on experimentally relevant time scales, enabling deeper insight into how magnetic fields control molecular and electronic behavior. The new methods will provide a foundation for the rational design of next-generation quantum technologies and energy-efficient materials. In addition to advancing scientific knowledge, this research supports interdisciplinary education and training at the interface of inorganic, physical, theoretical, and materials chemistry. Undergraduate and graduate students involved in the project will gain hands-on experience in computational science and high-performance software development, equipping them with essential skills for careers in science, engineering, and education. Xiaosong Li will establish a rigorous first-principles framework for modeling time-resolved magnetic circular dichroism (MCD) spectroscopy. At its core is the development of a relativistic, time-dependent multiconfigurational approach capable of simulating MCD spectral evo