Semiclassical dressed states of two-level quantum systems driven by non-resonant and/or strong laser fields
Semiclassical dressed states of two-level quantum systems driven by non-resonant and/or strong laser fields
复制标题
非共振和/或强激光场驱动的两级量子系统的半经典修饰态
DOI：
10.1088/0953-4075/34/12/306
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
V. Delgado
中科院分区：
文献类型：
--
作者：
A. Santana;J. Llorente;V. Delgado
得到了非共振和/或强激光场驱动的二能级量子系统在相干态下的半经典修饰态和相应的准能量的解析表达式。这些表达式在适当的微扰展开式中是一阶的，并且已经包含了关于这些系统在这种特殊条件下所显示的动力学和光谱性质的所有相关物理信息。根据准能级图和不同半经典修饰态之间的允许跃迁，可以很容易地理解激光场参数对跃迁频率、选择规则和谱线强度的影响。
Analytical expressions for the semiclassical dressed states and corresponding quasienergies are obtained for a two-level quantum system driven by a non-resonant and/or strong laser field in a coherent state. These expressions are of first order in a proper perturbative expansion, and already contain all the relevant physical information on the dynamical and spectroscopic properties displayed by these systems under such particular conditions. The influence of the laser field parameters on transition frequencies, selection rules and line intensities can be easily understood in terms of the quasienergy-level diagram and the allowed transitions between the different semiclassical dressed states.