论文标题
通过衍射光栅的原子的照片电离
Photo ionization of an atom passed through a diffraction grating
论文作者
论文摘要
我们认为原子的照片电离由于通过衍射光栅，该原子以多站点状态制备，该状态具有具有交替的最大值和最小值的周期性空间结构。已经发现，该过程在定性上与“正常”原子的照片电离有所不同。特别是，在此过程中，发射的电子和后坐离子的光谱显示出明显的一单粒子干扰效应。此外，这些粒子的动量分布之间也存在明显的差异，这些分布不再相互反映。所有这些功能的起源将详细讨论。还表明，可以通过探索后坐离子的光谱来完全解码有关在原子的多站点状态中编码的有关衍射光栅的信息，而光电子光谱仅部分包含此信息。
We consider photo ionization of an atom which, due to passing through a diffraction grating, is prepared in a multi-site state possessing a periodic space structure with alternating maxima and minima. It has been found that this process qualitatively differs from photo ionization of a 'normal' atom. In particular, the spectra of emitted electrons and recoil ions in this process display clear one- and two-particle interference effects. Moreover, there are also striking differences between the momentum distributions of these particles, which no longer mirror each other. The origin of all these features is discussed in detail. It is also shown that the information about the diffraction grating, which is encoded in the multi-site state of the atom, can be fully decoded by exploring the spectra of recoil ions whereas the photo-electron spectra contain this information only partially.
