Universal Regimes in Long-Time Asymptotic of Multilevel Quantum System Under Time-Dependent Perturbation

Entropy

Vladimir Akulin¹ 

[1] Tikhonov Institute of Mathematics and Electronics, High School of Economics, 34 Tallinskaya Ulitsa, 123458 Moscow, Russia;

关键词: multilevel quantum system;    resonant excitation;    random walk;    dynamic localization;   

DOI  :  10.3390/e23010099

来源: DOAJ

【 摘 要 】

In the framework of an exactly soluble model, one considers a typical problem of the interaction between radiation and matter: the dynamics of population in a multilevel quantum system subject to a time dependent perturbation. The algebraic structure of the model is taken richly enough, such that there exists a strong argument in favor of the fact that the behavior of the system in the asymptotic of long time has a universal character, which is system-independent and governed by the functional property of the time dependence exclusively. Functional properties of the excitation time dependence, resulting in the regimes of resonant excitation, random walks, and dynamic localization, are identified. Moreover, an intermediate regime between the random walks and the localization is identified for the polyharmonic excitation at frequencies given by the Liouville numbers.

【 授权许可】

Unknown