# Theoretical Physics

### High Energy Physics

Topics of interest to high-energy physicists include the phenomenology of elementary particle interactions, quantum field theory, the dynamical breakdown of quantum field theoretical symmetries, the quantization of gravity, string/brane models underlying known-interaction physics, and the unification of fundamental interactions of nature.

The high-energy physicists in our department participate in the Collaborative Ph.D. Program in Theoretical Physics, and have strong ties with the Perimeter Institute for Theoretical Physics in nearby Waterloo, Ontario.

### Materials Physics

At the other end of the spectrum, materials physics is a research area that connects physics with chemistry and computational mathematics. The Material Physics group in our department uses computer simulations of nano-scale phenomena to make important discoveries about the properties of materials we use every day.

Overall, the research in theoretical physics is devoted to the study of soft condensed matter physics, physical chemistry and fluid mechanics. Research topics include microfluidic devices, colloidal systems, nanotribology including friction in biological systems, ceramics under high pressure, quantum-mechanical many-body systems, quantum chemistry, polymers, liquid crystals, disordered systems, phase transitions, wave propagation and nonlinear interactions.