Divergence of the Floquet-Magnus expansion in a periodically driven one-body system with energy localization
Divergence of the Floquet-Magnus expansion in a periodically driven one-body system with energy localization
The Floquet-Magnus expansion is a useful tool to calculate an effective Hamiltonian for periodically driven systems. In this study, we investigate the convergence of the expansion for a one-body nonlinear system in a continuous space, a driven anharmonic oscillator. In this model, all eigenstates of the time-evolution operator are found …