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首页> 外文期刊>Laser Physics: An International Journal devoted to Theoretical and Experimental Laser Research and Application >Stabilization of an Atomic System in a Strong Laser Field and the Kramers-Henneberger Approach
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Stabilization of an Atomic System in a Strong Laser Field and the Kramers-Henneberger Approach

机译：强激光场中原子系统的稳定化和Kramers-Henneberger方法

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摘要

Ionization of a quantum system with a short-range potential by a linearly polarized field is numerically studied within a wide range of laser intensities and frequencies. The dynamics of such a system is interpreted in terms of both Kramers-Henneberger eigenstates and field-free atomic states. The exact solution is anaphysical description of the ionization of the system. The validity of the Kramers-Henneberger approach is examined, in particular, for low laser frequencies. In addition to the condition obtained by Gavrila and Kaminski, we found another, stronger limitation on the validity range of the Kramers-Henneberger approximation. Low-frequency stabilization is shown to occur only if the Kramers-Henneberger approach is physically correct and is applied within its validity range.
机译：在很宽的激光强度和频率范围内，通过线性极化场对具有短程电势的量子系统的电离进行了数值研究。这种系统的动力学可以用Kramers-Henneberger本征态和无场原子态来解释。确切的解决方案是系统电离的形而上学描述。特别是对于低激光频率，检查了Kramers-Henneberger方法的有效性。除了Gavrila和Kaminski获得的条件外，我们还发现了对Kramers-Henneberger逼近的有效范围的另一个更强的限制。仅在Kramers-Henneberger方法在物理上正确且在其有效范围内应用的情况下，才会出现低频稳定。

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