Condensed Matter Theory
Office: 6-137 C Knudsen
My interests lie broadly in quantum transport and nonequilibrium phenomena in nanostructures. Specific topics include (1) Spin-charge coupled transport in the presence of spin-orbit interactions: Boundary spin Hall effect, spin diffusion and spin drag, Aharonov-Casher spin interference effects in mesoscopic rings. Non-Abelian field-theoreical formulation of spin-orbit interaction phenomena. (2) Nonlinear ferromagnetic dynamics in the presence of large currents: Nonlocal spin-torque effects, pumping and damping, magnetic instabilities, domain-wall dynamics, finite-temperature and stochastic effects, microwave emission; magnetic memory, spin transistor, and spin battery applications. (3) Strongly correlated one-dimensional systems: Transport manifestations of spin-charge separation, finite temperature and finite-energy effects beyond Luttinger-liquid paradigm, bosonic and fermionic Wigner crystals, localization in one dimension. (4) Side interests include critical dynamics in classical fluid systems such as biological membranes, elasticity and sound propagation in porous and granular media, non-Abelian statistics and other quantum topological effects in two dimensions.