Attoclock setup with negative ions: A possibility for experimental validation
Attoclock setup with negative ions: A possibility for experimental validation
复制标题
DOI：
10.1103/physreva.99.023417
复制
发表时间：
2019-02
影响因子：
2.9
通讯作者：
N. Douguet;K. Bartschat
中科院分区：
文献类型：
--
作者：
N. Douguet;K. Bartschat
电子隧穿时间和其渐近动量之间的假定联系在时钟设置中引发了激烈的争论。在迄今为止所研究的中性原子系统中，长程库仑势对电子动量的作用阻碍了隧道效应对渐近电子动量的影响。我们提出并研究了一个使用F−或Cl−的原子钟实验来规避这个困难。我们的计算，与现实的激光参数在隧道机制进行，可以直接对实验进行检查，并预测基本上是一个“零”的偏振角，没有可检测的偏振效应。
The presumed connection in attoclock setups between the electron tunneling time and its asymp-totic momentum has triggered vigorous debates. In neutral atomic systems investigated so far, the action of the long-range Coulomb potential on the electron momentum hinders extracting the effect of the tunneling process on the offset angle of the asymptotic electron momentum. We propose and investigate an attoclock experiment using F− or Cl− to circumvent this difficulty. Our calculations, performed with realistic laser parameters in the tunneling regime, could be checked directly against experiment and predict essentially a “zero” offset angle with no detectable effect of polarization.