Exact solution for quantum dynamics of a periodically driven two-level system
Exact solution for quantum dynamics of a periodically driven two-level system
We present a family of exact analytic solutions for nonlinear quantum dynamics of a two-level system (TLS) subject to a periodic-in-time external field. In constructing the exactly solvable models, we use a ``reverse engineering'' approach where the form of external perturbation is chosen to preserve an integrability constraint, which yields …