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Название: On the Response of a Two-Level Quantum System to a Class of Time-Dependent Quasiperiodie Perturbations
Авторы: Luck J.M., Orland H., Smilansky U.
We study analytically the response of a two-level quantum system to a certain class of time-dependent quasiperiodic perturbations generated by a Fibonacci sequence. We show that the quasi-energy spectrum (Fourier transform of the evolution operator) generically is not a denumerable sum of delta functions. Hence the response is not quasiperiodic. Several numerical investigations (Poincare sections, polarization fluctuation, etc.) suggest an intermediate kind of behavior between quasiperiodic and chaotic.