Postdoctoral Research Associateships in Computer Science and Engineering

这项拟议的研究将继续并扩大对强扰动量子系统中新现象的计算机模拟。已开发出程序代码，用于获得在非常强和短脉冲辐射环境中单电子原子和负离子的含时量子力学波函数。这些波函数导致了新的预测，并与过去几年进行的实验进行了令人满意的半定量比较。这些波函数的概念将扩展到高强度激光领域中的双电子系统。这些计算将是第一次完全计入量子系统所有相互作用(电子-原子、电子-场和电子-电子)的那种类型的精确量子计算。它们将为系统测试传统多电子辐射理论中所涉及的近似的有效性范围提供一个新的机会。

The proposed research is to continue and to expand computer simulations of new phenomena in strongly perturbed quantum systems. Program codes to obtain time-dependent quantum mechanical wave functions for one-electron atoms and negative ions in very intense and short-pulse radiative environments have been developed. These wave functions have led to new predictions and satisfactory semi- quantitative comparisons with experiments carried out in the last few years. The concept of these wave functions will be extended to two- electron systems in high-intensity laser fields. These calculations will be the first exact quantum calculations of that type which fully counts for all interactions (electron-atom, electron-field and electron-electron) for a quantum system. They will provide a novel opportunity for systematic tests of the range of validity of approximations involved in traditional multi-electron radiation theories.//