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On the role of shake-off in single-photon double ionization

T. Pattard·T. Schneider·J. M. Rost
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Abstract

The role of shake-off for double ionization of atoms by a single photon with finite energy has become the subject of debate. In this letter, we attempt to clarify the meaning of shake-off at low photon energies by comparing different formulations appearing in the literature and by suggesting a working definition. Moreover, we elaborate on the foundation and justification of a mixed quantum-classical ansatz for the calculation of single-photon double ionization.

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T. Pattard, T. Schneider, J. M. Rost. 2003-06-03. On the role of shake-off in single-photon double ionization. https://doi.org/10.1088/0953-4075/36/12/101

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