Quantum anomaly and collective oscillations in 2D Fermi gases

The thesis concerns the creation and manipulation of ultra-cold gases of Fermions, which at such low temperatures and densities form exotic phases of matter. Specifically the gas of Fermions is constrained to two dimensions, and a breathing oscillation set up in the gas. The frequency of this breathing oscillation in certain regimes shows the existence of the 'quantum anomaly', a phenomenon of quantum physics.