Fundamental Physics refers to physics at or below the atomic scale. Academics in Fundamental Physics work on a broad range in topics on atomic, nuclear and particle physics, early Universe cosmology and connections between high energy physics, astroparticle physics and early Universe cosmology.

Current research topics include atoms in strong fields, quantum chaos, dark matter, dark energy, origin of the matter-antimatter asymmetry, origin of neutrino masses, cosmic inflation, Big Bang cosmology, tests of Grand Unified theories and other physics beyond the Standard Model, the search for cosmological variation of fundamental constants, structure formation and the cosmic microwave background.