Zille, D. and Seipt, D. and Möller, M. and Fritzsche, S. and Paulus, G. G. and Milošević, D. B. (2017) Spin-dependent quantum theory of high-order above-threshold ionization. Physical review a, 95 (6): 063408. ISSN 1050-2947
Full text not available from this repository.Abstract
The strong-field-approximation theory of high-order above-threshold ionization of atoms is generalized to include the electron spin. The obtained rescattering amplitude consists of a direct and exchange part. On the examples of excited He atoms as well as ${\mathrm{Li}}^{+}$ and ${\mathrm{Be}}^{++}$ ions, it is shown that the interference of these two amplitudes leads to an observable difference between the photoelectron momentum distributions corresponding to different initial spin states: Pronounced minima appear for singlet states, which are absent for triplet states.