Molecular physics is a branch of physics that focuses on studying the physical properties and behavior of molecules. This field involves the study of the structure, dynamics, and interactions of molecules at a molecular level. Researchers in molecular physics often use various theoretical and experimental techniques, such as quantum mechanics, spectroscopy, and computational modeling, to investigate the fundamental properties of molecules and their interactions with other molecules and light. This research area plays a crucial role in understanding chemical reactions, molecular dynamics, and the physical processes that occur at the molecular level.