Professor
My research activities are in theoretical condensed matter physics. My main interests concern the quantum-mechanical many-body problem in the presence of very strong particle-particle interactions. In this area, I have been using the techniques of quantum statistical mechanics and field theory to investigate the phase transitions and the transport and thermodynamic properties of a number of systems, including high- temperature superconductors, metals at the threshold of breakdown of Fermi-liquid behavior, helium at ultra-low temperatures, localized spins in metals, magnets with unusual spin correlations, and excitons in semiconductors.
Revised October 11, 1995