Photoionization time delays probe electron correlations
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arXiv
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| Main Authors: | , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866916725961785344 |
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| author | Li, Mingxuan Wang, Huiyong Tahouri, Rezvan Weissenbilder, Robin Li, Jialong Wang, Wentao Cai, Jiaao Hong, Xiaochun Shi, Xiaosen Pi, Liang-Wen Busto, David Gisselbrecht, Mathieu Ueda, Kiyoshi Demekhin, Philipp V. L'Huillier, Anne Dahlström, Jan Marcus Lindroth, Eva Ding, Dajun Luo, Sizuo |
| author_facet | Li, Mingxuan Wang, Huiyong Tahouri, Rezvan Weissenbilder, Robin Li, Jialong Wang, Wentao Cai, Jiaao Hong, Xiaochun Shi, Xiaosen Pi, Liang-Wen Busto, David Gisselbrecht, Mathieu Ueda, Kiyoshi Demekhin, Philipp V. L'Huillier, Anne Dahlström, Jan Marcus Lindroth, Eva Ding, Dajun Luo, Sizuo |
| contents | The photoelectric effect, explained by Einstein in 1905, is often regarded as a one-electron phenomenon. However, in multi-electron systems, the interaction of the escaping electron with other electrons, referred to as electron correlation, plays an important role. For example, electron correlations in photoionization of the outer $s$-subshells of rare gas atoms lead to a substantial minimum in the ionization probability, which was theoretically predicted in 1972 and experimentally confirmed using synchrotron radiation. However, recent attosecond photoionization time delay measurements in argon strongly disagree with theory, thus raising questions on the nature of electron correlations leading to this minimum. In this work, combining high-spectral resolution attosecond interferometry experiments and novel theoretical calculations allows us to identify the most essential electron correlations affecting the photoemission. The measurement of time delays gives unprecedented insight into the photoionization process, unraveling details of the atomic potential experienced by the escaping electron and capturing its dynamics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_04837 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Photoionization time delays probe electron correlations Li, Mingxuan Wang, Huiyong Tahouri, Rezvan Weissenbilder, Robin Li, Jialong Wang, Wentao Cai, Jiaao Hong, Xiaochun Shi, Xiaosen Pi, Liang-Wen Busto, David Gisselbrecht, Mathieu Ueda, Kiyoshi Demekhin, Philipp V. L'Huillier, Anne Dahlström, Jan Marcus Lindroth, Eva Ding, Dajun Luo, Sizuo Atomic Physics The photoelectric effect, explained by Einstein in 1905, is often regarded as a one-electron phenomenon. However, in multi-electron systems, the interaction of the escaping electron with other electrons, referred to as electron correlation, plays an important role. For example, electron correlations in photoionization of the outer $s$-subshells of rare gas atoms lead to a substantial minimum in the ionization probability, which was theoretically predicted in 1972 and experimentally confirmed using synchrotron radiation. However, recent attosecond photoionization time delay measurements in argon strongly disagree with theory, thus raising questions on the nature of electron correlations leading to this minimum. In this work, combining high-spectral resolution attosecond interferometry experiments and novel theoretical calculations allows us to identify the most essential electron correlations affecting the photoemission. The measurement of time delays gives unprecedented insight into the photoionization process, unraveling details of the atomic potential experienced by the escaping electron and capturing its dynamics. |
| title | Photoionization time delays probe electron correlations |
| topic | Atomic Physics |
| url | https://arxiv.org/abs/2505.04837 |