Open AccessDissection of electron correlation in strong-field sequential double ionization using a classical model
Author(s) -
Yueming Zhou,
Min Li,
Yang Li,
Aihong Tong,
Qianguang Li,
Peixiang Lu
Publication year - 2017
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.008450
Subject(s) - ionization , double ionization , electron , physics , tracing , impact ionization , atomic physics , electron ionization , electronic correlation , correlation , quantum mechanics , computer science , mathematics , ion , operating system , geometry
Recent experiments on strong-field sequential double ionization (SDI) have reported several observations which are regarded as evidence of electron correlation, querying the validity of the standard independent electron approximation for SDI. Here we theoretically study SDI with a classical ensemble model. The experimental results are well reproduced with this model. Back tracing of the ionization process shows that these results are ascribed to the subcycle ionization dynamics of the two electrons, not the evidences of the electron correlation in SDI. Thus, the previously reported observations are not enough to claim the breakdown of the independent electron approximation in SDI.