Quasi-energies, parametric resonances, and stability limits in ac-driven $\mathcal{P}\mathcal{T}$-symmetric systems

Jennie D'Ambroise, Boris A. Malomed, P. G. Kevrekidis

We introduce a simple model for implementing the concepts of quasi-energy and parametric resonances (PRs) in systems with the $\mathcal{P}\mathcal{T}$ symmetry, i.e., a pair of coupled and m…