
Dietrich Belitz conducts theoretical research at the boundary between statistical mechanics and condensed matter physics. His principal interest has been focussed on quantum manybody problems, including superconductivity and magnetism, on quantum phase transitions, in particular metalinsulator transitions and magnetic transitions, and on transport theory.
Quantum phase transitions take place at zero temperature as some nonthermal control parameter is varied. Prominent examples are the ferromagnetic transition of itinerant electrons at low temperature as a function of pressure, or the metalinsulator transition in doped semiconductors as a function of the dopant concentration. While the concepts developed for thermal phase transitions, such as scaling and universality, and the general apparatus of the renormalization group, still apply, the detailed behavior in the vicinity of quantum phase transitions has proven to be rather complex and hard to understand. Two thrusts of Belitz's research have been work on the AndersonMott metalinsulator transition that occurs in disordered systems of interacting electrons, and an investigation of the quantum ferromagnetic transition. Belitz maintains a close collaboration with Ted Kirkpatrick at the University of Maryland's IPST .
Fall 2020: PHYS 610 Mathematical Methods for Scientists
Winter 2021: PHYS 622 Classical Electrodynamics
Spring 2021: PHYS 623 Classical Electrodynamics