论文标题
隧道动力学中时间相关的相互作用
Time-dependent Interactions in Tunnelling Dynamics
论文作者
论文摘要
在本文中，在存在时间依赖性扰动的情况下研究了粒子通过潜在屏障的隧穿。后者归因于散射粒子的能量测量过程。该模型的时间依赖性Schrodinger方程已完全解决。屏障内部概率密度的计算证明，隧道动力学不仅取决于传输和反射波，而且还取决于它们的干扰。此外，干扰项是时间依赖性的，并有助于散射过程持续时间。计算隧道时间是停止障碍物内概率密度流动的时间。这是测量过程的最小持续时间，然后才能检测到屏障之外的粒子。基于此，提出了一种通过能量实验测量来估计隧道时间的新方法。
In this paper, the tunnelling of a particle through a potential barrier is investigated in the presence of a time-dependent perturbation. The latter is attributed to the process of the energy measurement of the scattered particle. The time-dependent Schrodinger equation of the model is exactly solved. The calculation of the probability density inside the barrier proves that the tunnelling dynamics is determined not only by the transmitted and reflected waves but also by their interference. Furthermore, the interference term is time-dependent and contribute to the scattering process duration. The tunnelling time is calculated as the time to stop the flow of probability density inside the barrier. This is the minimum duration of the measurement process before detecting the particle beyond the barrier. Based on this, a new method of estimating the tunnelling time by energy experimental measuring is proposed.
