Xinglong Chen is a first-year PhD student in physics, specialising in theoretical high-energy physics. His research focuses on quantum field theory, with particular interests in multi-loop Feynman integrals, differential equation methods, and their applications to precision calculations. He has worked on problems related to black hole thermodynamics, cosmic inflation during his undergraduate years, developing both analytical techniques and computational tools. Currently, he is learning modern approaches to simplifying multi-loop integrals, including canonical forms and iterative structures.