|Condensed Matter Theory|
Electron transport in mesoscopic and disordered systems, Coulomb blockade devices, and in other low-dimensional electron systems; theory of speckles of coherent waves propagating through random media.
I work on applications of time-dependent density-functional theory to laser and other electromagnetic interactions with condensed matter. Specific topics include dielectric response, dichroism, high-field response, and coherent phonon generation.
|Marcel den Nijs|
Equilibrium and non-equilibrium statistical mechanics and low dimensional quantum field theory, with applications to surface science, one dimensional quantum fluids and solids, and to neuroscience.
|Symmetry and Topology|
My research focus is on identifying and classifying exotic phases of matter. In particular, our group focuses on phases which cannot be understood in terms of traditional symmetry breaking Ginzburg-Landau theory, such as fractional quantum Hall phases and topological insulators (TIs). Recently we have been classifying strongly interacting versions of TIs, termed ‘symmetry protected topological’ phases, using tools such as topological quantum field theory and exactly solved models. We are also interested in other settings for realizing topological order, such as at non-zero energy density or in driven (Floquet) systems, aided by many-body localization.
|John J. Rehr|
|FEFF and CMSN|
Fundamental condensed matter theory, aiming at a quantitative understanding of electronic structure and many-body theory, using modern high performance computational techniques.
|Theory of lipid membranes|
Modulated phases of block copolymers and biological lipids; fusion of small vesicles and organization in lipid bilayers, such as the plasma membrane.