Fundamental physics is a branch of physics that aims to understand the fundamental laws and principles that govern the behavior of the universe at its most basic level. This field explores the fundamental forces of nature, such as gravity, electromagnetism, and the strong and weak nuclear forces, as well as the fundamental particles that make up matter, such as quarks and leptons. Researchers in fundamental physics work to develop theories and models that can explain and predict the behavior of these fundamental forces and particles, with the ultimate goal of achieving a unified theory that can describe all of the fundamental interactions in the universe. This field encompasses a wide range of research areas, including particle physics, quantum field theory, and cosmology. Overall, fundamental physics seeks to uncover the underlying principles that govern the universe and to deepen our understanding of the nature of reality.