Quantum simulation of scattering processes

Alessandro Bisio, University of Pavia, Italy

We present a systematic treatment of scattering processes for quantum systems whose time evolution is discrete. We prove some general properties of the scattering operator and we develop two perturbative techniques for the power series expansion of scattering amplitudes. This formalism is used to assess the performance of discrete-time quantum simulators in recovering the scattering amplitudes of continuous-time models.

Recording of the talk