Quench dynamics in the Anderson impurity model

We study the non-equilibrium behavior of an interacting quantum dot following a quench, where it is suddenly attached to a lead. The system is modeled by a single level Anderson impurity model with infinite on-site repulsion attached via tunneling to non-interacting leads. We use the open system Bethe Ansatz solution of the Anderson model and develop a formal framework to implement Yudson's contour integral formalism in the presence of a Fermi sea. This framework allows the calculation of the full time evolution of the multi-particle wave function and various observables of the system.