Ultracold Atomic Gases
Atomic physics experiments access ultra-low temperatures where quantum effects are most prominent. I am interested in studying collective quantum phenomena, such as superfluidity and magnetism, in the context of cold atoms.
Graphene, a one-atom thick sheet of carbon, has novel mechanical and electronic properties such as an approximate “relativistic” electronic energy spectrum. I am interested in studying how electron interactions affect observable properties (like the conductivity) of graphene as well as related systems such as topological insulators.
Novel Superconductivity: The conventional "Bardeen-Cooper-Schrieffer" (BCS) theory
of superconductors, formulated in 1957, is remarkably successful at describing
conventional low-temperature superconductors but fails for numerous modern
superconductors, including the cuprate and pnictide high-temperature
superconductors but also the exotic "Fulde-Ferrell-Larkin-Ovchinnikov"
superconducting state of superconductors in an applied magnetic field. Our group is
interested in materials exhibiting such states, and also in cold atomic
gas experiments that can realize unconventional superconducting
states of cold fermionic atoms.