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arXiv · 2003.12409

Electron correlation and short-range dynamics in attosecond angular streaking

G. S. J. Armstrong·D. D. A. Clarke·J. Benda·A. C. Brown·H. W. van der Hart
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Abstract

We employ the R-matrix with time-dependence method to study attosecond angular streaking of F$^-$. Using this negative ion, free of long-range Coulomb interactions, we elucidate the role of short-range electron correlation effects in an attoclock scheme. Through solution of the multielectron time-dependent Schrodinger equation, we aim to bridge the gap between experiments using multielectron targets, and one-electron theoretical approaches. We observe significant negative offset angles in the photoelectron momentum distributions, despite the short-range nature of the binding potential. We show that the offset angle is sensitive to the atomic structure description of the residual F atom. We also investigate the response of co- and counter-rotating electrons, and observe an angular separation in their emission.

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G. S. J. Armstrong, D. D. A. Clarke, J. Benda, A. C. Brown, H. W. van der Hart. 2020-03-27. Electron correlation and short-range dynamics in attosecond angular streaking. https://doi.org/10.1103/physreva.101.041401

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