论文标题
量子旅行时间和原子的隧道电离时间
Quantum Travel Time and Tunnel Ionization Times of Atoms
论文作者
论文摘要
从一个位置到另一个位置的时间，没有任何量子机械描述，已经进行了不同的建模，尤其是用于量子隧道。模型时间，如果普遍有效，必须是跨境的，必须在任何地方（内部和外部）保持干扰效应，并且必须具有明智的经典限制。在这里，我们表明，量子旅行时间（假设随状态向量出现）是概率密度和概率电流的函数，以便满足上述所有标准。我们在矩形电势屏障内外计算它，并找到身体上明智的结果。此外，我们将其与$ \ rm he $以及$ \ rm ar $和$ \ rm kr kr $ atoms的最新电离时间测量结果进行了对比，并与数据找到了良好的一致性。量子旅行时间适合固定系统，并且可以在众多隧道驱动现象中应用。
Time it takes to travel from one position to another, devoid of any quantum mechanical description, has been modeled variously, especially for quantum tunneling. The model time, if universally valid, must be subluminal, must hold everywhere (inside and outside the tunneling region), must comprise interference effects, and must have a sensible classical limit. Here we show that the quantum travel time, hypothesized to emerge with the state vector, is a function of the probability density and probability current such that all the criteria above are fulfilled. We compute it inside and outside a rectangular potential barrier and find physically sensible results. Moreover, we contrast it with recent ionization time measurements of the $\rm He$ as well as the $\rm Ar$ and $\rm Kr$ atoms, and find good agreement with data. The quantum travel time holds good for stationary systems, and can have applications in numerous tunneling-driven phenomena.
