量子涡旋中心附近光电子的波函数
The wave function of a photoelectron near the center of a quantum vortex
AI总结:
该研究在二维近似下,通过简化动量表象中的波函数,得到了量子涡旋中心附近光电子波函数的解析表达式,并分析了其时间演化及激光脉冲强度的影响。
摘要:
在二维近似下,理论上研究了量子涡旋局域化附近光电子的概率密度和电流。我们先前发现的动量表象中的波函数在零点附近被简化,该零点对应于涡旋的中心。这使得我们能够获得其简单的解析表达式,该表达式具有高斯波包的结构,并包含关于涡旋的基本信息。它被用于分析量子涡旋在动量空间和坐标空间中的时间演化。还研究了电离超短激光脉冲的强度对量子涡旋形状的影响。
英文摘要:
In a two-dimensional approximation, the probability density and current for a photoelectron near the localization of a quantum vortex are theoretically investigated. The wave function in the momentum representation, which we found earlier, is simplified near zero, corresponding to the center of the vortex. This allows us to obtain a simple analytical expression for it, which has the structure of a Gaussian wave packet and contains basic information about the vortex. It is used to analyze the temporal evolution of a quantum vortex, both in momentum and coordinate space. The effect of the intensity of an ionizing ultrashort laser pulse on the shape of a quantum vortex is also investigated.
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