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Search for the Collective Tunneling Effect in the Ionization of Multiply Charged Li-Like Ions by Two Laser Beams of Extreme Intensity

  • LABORATORY ASTROPHYSICS, HIGH ENERGY DENSITY PROCESSES, DIAGNOSTICS, AND OTHER APPLICATIONS
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Abstract

The probability of simultaneous tunneling of two electrons from multiply charged Li-like ions in a high-intensity laser field is estimated. It is shown that for atoms with a nuclear charge Zm \( \gg \) 1, the probability per unit time of collective tunneling of a 2s–1s electron pair can be more than an order of magnitude higher than the probability of detachment of a 1s electron. This provides favorable conditions for searching for the collective tunneling effect in the ionization of heavy multiply charged ions. The relative contributions of the sequential and collective ionization channels can be separated using the two-beam experimental scheme. Taking into account that to observe the effect, intensities exceeding 1021 W/cm2 in one of the beams are required, the proposed scheme of the experiment to search for the collective tunneling effect requires the use of laser pulses of extreme power, which is planned to be reached, in particular, at the XCELS facility.

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Funding

This work was supported by the Ministry of Education and Science of the Russian Federation (project no. FZGU–2020-0035).

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Authors and Affiliations

  1. Prokhorov General Physics Institute, Russian Academy of Sciences, 119991, Moscow, Russia

    S. V. Popruzhenko

  2. Federal Research Center Institute of Applied Physics, Russian Academy of Sciences, 603155, Nizhny Novgorod, Russia

    S. V. Popruzhenko

  3. National Research Nuclear University MEPhI, 142184, Moscow, Russia

    D. I. Tyurin

Authors
  1. S. V. Popruzhenko
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  2. D. I. Tyurin
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Correspondence to S. V. Popruzhenko.

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Translated by L. Mosina

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Popruzhenko, S.V., Tyurin, D.I. Search for the Collective Tunneling Effect in the Ionization of Multiply Charged Li-Like Ions by Two Laser Beams of Extreme Intensity. Bull. Lebedev Phys. Inst. 50 (Suppl 8), S922–S927 (2023). https://doi.org/10.3103/S1068335623200095

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  • DOI: https://doi.org/10.3103/S1068335623200095

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