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State-specific ion mobilities of Lr+ (Z=103) in helium

Harry Ramanantoanina1,2,*, Anastasia Borschevsky3, Michael Block1,2,4, Larry Viehland5, and Mustapha Laatiaoui1,2,†

  • 1Department Chemie, Johannes Gutenberg-Universität, Fritz-Strassmann Weg 2, 55128 Mainz, Germany
  • 2Helmholtz-Institut Mainz, Staudingerweg 18, 55128 Mainz, Germany
  • 3Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Nijenborgh 4, 9747 Groningen, The Netherlands
  • 4GSI Helmholtzzentrum für Schwerionenforschung, Planckstrasse 1, 64291 Darmstadt, Germany
  • 5Science Department, Chatham University, Pittsburgh, Pennsylvania 15232, USA

  • *Corresponding author: harry.ramanantoanina@kit.edu
  • †Corresponding author: mlaatiao@uni-mainz.de
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Phys. Rev. A 108, 012802 – Published 5 July, 2023

DOI: https://doi.org/10.1103/PhysRevA.108.012802

Abstract

Ion mobilities of Lr+ (Z=103) and of its lighter chemical homolog Lu+ (Z=71) in helium were calculated for the ground state S01 and the lowest metastable state D13. To this end we applied the multireference configuration interaction method to calculate the ion-atom interaction potentials in the different states. The Gram-Charlier approach to solving the Boltzmann equation was used to deduce the mobilities of the different electronic states, based on the calculated interaction potentials. We found that the zero-field ion mobilities are similar for the Lr+ and Lu+ ions. In addition, the ion mobilities of the different states are substantially different for temperatures above 100K. The relative differences between the mobilities of the ground and excited states at room temperature are about 15% and 13% for Lu+ and Lr+ ions, respectively, which should be sufficiently large enough to enable laser resonance chromatography of these ions.

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Phys. Rev. A 108, 012802– Published 5 July, 2023
  • Received 10 April 2023
  • Accepted 21 June 2023
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