Perturbation and Floquet driving

Static perturbation theory (linear Stark splitting and Zeeman sublevel splitting) and time-dependent perturbation theory (multiphoton transitions in an AC-driven infinite well, via Floquet analysis).

Floquet-driven box: time-dependent perturbation theory

Floquet-driven box: time-dependent perturbation theory

Stark and Zeeman splitting: static perturbation theory

Stark and Zeeman splitting: static perturbation theory