Revealing the two-electron cusp in the ground states of He and H2 via quasifree double photoionization

Sven Grundmann; Vladislav V. Serov; Florian Trinter; Kilian Fehre; Nico Strenger; Andreas Pier; Max Kircher; Daniel Trabert; Miriam Weller; Jonas Rist; Leon Kaiser; Alexander W. Bray; Lothar Ph H. Schmidt; Joshua B. Williams; Till Jahnke; Reinhard Dörner; Markus S. Schöffler; Anatoli S. Kheifets

doi:10.1103/PhysRevResearch.2.033080

Revealing the two-electron cusp in the ground states of He and H2 via quasifree double photoionization

Sven Grundmann, Vladislav V. Serov, Florian Trinter, Kilian Fehre, Nico Strenger, Andreas Pier, Max Kircher, Daniel Trabert, Miriam Weller, Jonas Rist, Leon Kaiser, Alexander W. Bray, Lothar Ph H. Schmidt, Joshua B. Williams, Till Jahnke, Reinhard Dörner, Markus S. Schöffler, Anatoli S. Kheifets

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7 Citations (Scopus)

Abstract

We report on kinematically complete measurements and ab initio nonperturbative calculations of double ionization of He and H2 by a single 800 eV circularly polarized photon. We confirm the quasifree mechanism of photoionization for H2 and show how it originates from the two-electron cusp in the ground state of a two-electron target. Our approach establishes a method for mapping electrons relative to each other and provides valuable insight into photoionization beyond the electric-dipole approximation.

Original language	English
Article number	033080
Journal	Physical Review Research
Volume	2
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevResearch.2.033080
Publication status	Published - Jul 2020

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Grundmann, S., Serov, V. V., Trinter, F., Fehre, K., Strenger, N., Pier, A., Kircher, M., Trabert, D., Weller, M., Rist, J., Kaiser, L., Bray, A. W., Schmidt, L. P. H., Williams, J. B., Jahnke, T., Dörner, R., Schöffler, M. S., & Kheifets, A. S. (2020). Revealing the two-electron cusp in the ground states of He and H2 via quasifree double photoionization. Physical Review Research, 2(3), Article 033080. https://doi.org/10.1103/PhysRevResearch.2.033080

@article{ccd4529782ae4d8d8241306107b8969d,

title = "Revealing the two-electron cusp in the ground states of He and H2 via quasifree double photoionization",

abstract = "We report on kinematically complete measurements and ab initio nonperturbative calculations of double ionization of He and H2 by a single 800 eV circularly polarized photon. We confirm the quasifree mechanism of photoionization for H2 and show how it originates from the two-electron cusp in the ground state of a two-electron target. Our approach establishes a method for mapping electrons relative to each other and provides valuable insight into photoionization beyond the electric-dipole approximation.",

author = "Sven Grundmann and Serov, \{Vladislav V.\} and Florian Trinter and Kilian Fehre and Nico Strenger and Andreas Pier and Max Kircher and Daniel Trabert and Miriam Weller and Jonas Rist and Leon Kaiser and Bray, \{Alexander W.\} and Schmidt, \{Lothar Ph H.\} and Williams, \{Joshua B.\} and Till Jahnke and Reinhard D{\"o}rner and Sch{\"o}ffler, \{Markus S.\} and Kheifets, \{Anatoli S.\}",

note = "Publisher Copyright: {\textcopyright} 2020 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.",

year = "2020",

month = jul,

doi = "10.1103/PhysRevResearch.2.033080",

language = "English",

volume = "2",

journal = "Physical Review Research",

issn = "2643-1564",

publisher = "American Physical Society",

number = "3",

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Grundmann, S, Serov, VV, Trinter, F, Fehre, K, Strenger, N, Pier, A, Kircher, M, Trabert, D, Weller, M, Rist, J, Kaiser, L, Bray, AW, Schmidt, LPH, Williams, JB, Jahnke, T, Dörner, R, Schöffler, MS & Kheifets, AS 2020, 'Revealing the two-electron cusp in the ground states of He and H2 via quasifree double photoionization', Physical Review Research, vol. 2, no. 3, 033080. https://doi.org/10.1103/PhysRevResearch.2.033080

TY - JOUR

T1 - Revealing the two-electron cusp in the ground states of He and H2 via quasifree double photoionization

AU - Grundmann, Sven

AU - Serov, Vladislav V.

AU - Trinter, Florian

AU - Fehre, Kilian

AU - Strenger, Nico

AU - Pier, Andreas

AU - Kircher, Max

AU - Trabert, Daniel

AU - Weller, Miriam

AU - Rist, Jonas

AU - Kaiser, Leon

AU - Bray, Alexander W.

AU - Schmidt, Lothar Ph H.

AU - Williams, Joshua B.

AU - Jahnke, Till

AU - Dörner, Reinhard

AU - Schöffler, Markus S.

AU - Kheifets, Anatoli S.

N1 - Publisher Copyright: © 2020 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

PY - 2020/7

Y1 - 2020/7

N2 - We report on kinematically complete measurements and ab initio nonperturbative calculations of double ionization of He and H2 by a single 800 eV circularly polarized photon. We confirm the quasifree mechanism of photoionization for H2 and show how it originates from the two-electron cusp in the ground state of a two-electron target. Our approach establishes a method for mapping electrons relative to each other and provides valuable insight into photoionization beyond the electric-dipole approximation.

AB - We report on kinematically complete measurements and ab initio nonperturbative calculations of double ionization of He and H2 by a single 800 eV circularly polarized photon. We confirm the quasifree mechanism of photoionization for H2 and show how it originates from the two-electron cusp in the ground state of a two-electron target. Our approach establishes a method for mapping electrons relative to each other and provides valuable insight into photoionization beyond the electric-dipole approximation.

UR - https://www.scopus.com/pages/publications/85106421201

U2 - 10.1103/PhysRevResearch.2.033080

DO - 10.1103/PhysRevResearch.2.033080

M3 - Article

SN - 2643-1564

VL - 2

JO - Physical Review Research

JF - Physical Review Research

IS - 3

M1 - 033080

ER -

Revealing the two-electron cusp in the ground states of He and H2 via quasifree double photoionization

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