Ivanov I A, Kheifets Anatoli S, Kim Kyung Taec
Center for Relativistic Laser Science, Institute for Basic Science, Gwangju, 61005, Korea.
Research School of Physics, The Australian National University, Canberra, ACT, 2601, Australia.
Sci Rep. 2021 Nov 2;11(1):21457. doi: 10.1038/s41598-021-00818-1.
We study propagation effects due to the finite speed of light in ionization of extended molecular systems. We present a general quantitative theory of these effects and show under which conditions such effects should appear. The finite speed of light propagation effects are encoded in the non-dipole terms of the time-dependent Shrödinger equation and display themselves in the photoelectron momentum distribution projected on the molecular axis. Our numerical modeling for the [Formula: see text] molecular ion and the [Formula: see text] dimer shows that the finite light propagation time from one atomic center to another can be accurately determined in a table top laser experiment which is much more readily accessible than the ground breaking synchrotron measurement by Grundmann et al. (Science 370:339, 2020).
我们研究了由于光速有限在扩展分子系统电离过程中产生的传播效应。我们提出了这些效应的一般定量理论，并说明了在哪些条件下会出现此类效应。光速有限传播效应编码在含时薛定谔方程的非偶极项中，并在投影到分子轴上的光电子动量分布中表现出来。我们对[公式：见原文]分子离子和[公式：见原文]二聚体的数值模拟表明，在桌面激光实验中可以准确确定从一个原子中心到另一个原子中心的有限光传播时间，这比Grundmann等人（《科学》370:339，2020年）具有开创性的同步加速器测量更容易实现。
