Quantum kinetic description of attractive two-component fermions from the weak-coupling Fermi liquid to the strong-coupling Bose liquid regime

We derive a set of quantum kinetic equations governing the non-equilibrium dynamics of two-component fermions with short-range attractive interactions from the leading order large-N expansion of the effective action of an Sp(N)-symmetric Fermi gas. The derived kinetic equations reduce to the Boltzmann equation describing the evolution of the occupation of fermionic quasiparticles and long-lived composite bosons in the weak- and strong-coupling limits, respectively, while providing a smooth interpolation of the two limits for the intermediate pairing pseudogap regime. The obtained formalism successfully explains the findings of a recent experiment with two-dimensional ultracold Fermi gases.