Non-equilibrium dynamics of an ensemble of 2D Fermi gases

We study the dynamics of an ensemble of two dimensional Fermi gases near Feshbach scattering resonances. We begin our experiments with a weakly interacting or non-interacting gas and initiate strong interactions on a timescale that is fast compared to equilibration. We probe the evolution of the short-ranged part of the many-body wavefunction via radio frequency spectroscopy. Alternatively, we perform spin echo measurements to reveal the dissipative (spin diffusion) and reactive (Leggett-Rice effect) components of transverse spin currents.