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首页> 外文期刊>Journal of Experimental and Theoretical Physics >Theory of the resonant Properties of Electrons Localized on the surface of Liquid Helium
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Theory of the resonant Properties of Electrons Localized on the surface of Liquid Helium

机译：液氦表面电子的共振特性理论

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摘要

The problem of the shape of the line of optical transition of an electron between bound states on the surface of liquid helium is solved within the independent boson model. Such bound states are realized, for example, in the potential of a positively charged impurity located on a substrate or in the field of a He~+ ion located beneath the surface. Reference is made to the importance of the relaxation processes of the dimple on the helium surface under the electron. The adiabatic approximation, in the case of which the dimple does not change during the time of electron transition, is not always valid. At low temperatures, two maxima may appear on the absorption line. It is demonstrated that the far tails of the optical absorption line feature a universal (Urbach rule) exponential dependence on the electron transition energy.
机译：在独立玻色子模型内解决了电子在液氦表面上的束缚态之间的光学跃迁线的形状问题。这种结合状态例如通过位于基板上的带正电荷的杂质的电势或位于表面下方的He +离子的场中来实现。提到了在电子作用下氦表面上的凹窝松弛过程的重要性。绝热近似在电子跃迁期间凹痕不发生变化的情况下并不总是有效的。在低温下，吸收线上可能出现两个最大值。已经证明，光吸收线的远尾具有对电子跃迁能量的普遍指数依赖性（乌尔巴赫法则）。

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