文献类型：期刊文献

英文题名：Numerical simulations of strong-field processes in momentum space ?

作者：Xu, Yan[1]; Bian, Xue-Bin[2]

第一作者：徐彦

机构：[1] College of Physics and Electronic Engineering, Xinxiang University, Xinxiang, 453003, China; [2] State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China

第一机构：新乡学院物理与电子工程学院

年份：2019

外文期刊名：arXiv

收录：EI(收录号：20200234146)

语种：英文

外文关键词：Harmonic generation - Ionization - Momentum - Numerical models

摘要：The time-dependent Schr?dinger equation (TDSE) is usually treated in the real space in the text book. However, it makes the numerical simulations of strong-field processes difficult due to the wide dispersion and fast oscillation of the electron wave packets under the interaction of intense laser fields. Here we demonstrate that the TDSE can be efficiently solved in the momentum space. The high-order harmonic generation and above-threshold ionization spectra obtained by numerical solutions of TDSE in momentum space agree well with previous studies in real space, but significantly reducing the computation cost. Copyright ? 2019, The Authors. All rights reserved.