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  Electronic Bridge Excitation in Highly Charged 229Th Ions

Bilous, P. V., Bekker, H., Berengut, J. C., Seiferle, B., von der Wense, L., Thirolf, P. G., et al. (2020). Electronic Bridge Excitation in Highly Charged 229Th Ions. Physical Review Letters, 124(19): 192502. doi:10.1103/PhysRevLett.124.192502.

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2001.06421.pdf (Preprint), 650KB
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File downloaded from arXiv at 2020-05-15 16:31
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 Creators:
Bilous, Pavlo V.1, Author           
Bekker, H.2, 3, Author           
Berengut, Julian C.4, 5, Author
Seiferle, Benedict6, Author
von der Wense, Lars6, Author
Thirolf, Peter G.6, Author
Pfeifer, Thomas2, Author           
Crespo López-Urrutia, Jose R.2, Author           
Pálffy, Adriana1, Author           
Affiliations:
1Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society, ou_904546              
2Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society, ou_2025284              
3Department of Physics, Columbia University, 538 West 120th Street, New York, New York 10027-5255, USA, ou_persistent22              
4University of New South Wales, Sydney NSW 2052, Australia, ou_persistent22              
5Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany, ou_persistent22              
6Ludwig-Maximilians-Universität München, Am Coulombwall 1, D-85748 Garching, Germany, ou_persistent22              

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Free keywords: Physics, Atomic Physics, physics.atom-ph
 MPINP: Research group A. Pálffy – Division C. H. Keitel
 Abstract: The excitation of the 8 eV $^{229m}$Th isomer through the electronic bridge
mechanism in highly charged ions is investigated theoretically. By exploiting
the rich level scheme of open $4f$ orbitals and the robustness of highly
charged ions against photoionization, a pulsed high-intensity optical laser can
be used to efficiently drive the nuclear transition by coupling it to the
electronic shell. We show how to implement a promising electronic bridge scheme
in an electron beam ion trap starting from a metastable electronic state. This
setup would avoid the need for a tunable vacuum ultraviolet laser. Based on our
theoretical predictions, determining the isomer energy with an uncertainty of
$10^{-5}$ eV could be achieved in one day of measurement time using realistic
laser parameters.

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 Dates: 2020-05-12
 Publication Status: Published online
 Pages: 6 pages, 4 figures
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 Table of Contents: -
 Rev. Type: Peer
 Degree: -

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Title: Physical Review Letters
  Abbreviation : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: - Volume / Issue: 124 (19) Sequence Number: 192502 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: https://pure.mpg.de/cone/journals/resource/954925433406_1