Journal article · January 2023

Quantum correlation of electron and ion energy in the dissociative strong-field ionization of H2

A. Geyer, O. Neufeld, D. Trabert, U. De Giovannini, M. Hofmann, N. Anders, L. Sarkadi, M. S. Schöffler, L. Ph. H. Schmidt, A. Rubio, T. Jahnke, M. Kunitski and S. Eckart

Physical Review Research 5, 013123 (2023) · doi:10.1103/physrevresearch.5.013123

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Abstract

We report on the strong field ionization of H2 by a corotating two-color laser field. We measure the electron momentum distribution in coincidence with the kinetic energy release (KER) of dissociating hydrogen molecules. In addition to a characteristic half-moon structure, we observe a low-energy structure in the electron momentum distribution at a KER of about 3.5 eV. We speculate that the outgoing electron interacts with the molecular ion, despite the absence of classical recollisions under these conditions. Time-dependent density functional theory simulations support our conclusions.

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@article{10.1103/physrevresearch.5.013123,
 author = {Geyer, A. and Neufeld, O. and Trabert, D. and Giovannini, U. De and Hofmann, M. and Anders, N. and Sarkadi, L. and Schöffler, M. S. and Schmidt, L. Ph. H. and Rubio, A. and Jahnke, T. and Kunitski, M. and Eckart, S.},
 doi = {10.1103/physrevresearch.5.013123},
 journal = {Physical Review Research},
 keywords = {},
 number = {1},
 pages = {013123},
 title = {Quantum correlation of electron and ion energy in the dissociative strong-field ionization of H2},
 volume = {5},
 year = {2023}
}