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International Conference on Precision Physics and Fundamental Physical Constants FFK2023

22–26 May 2023
Europe/Vienna timezone

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Session

Wednesday 1

24 May 2023, 09:00

Conveners

Wednesday 1: Helium ion

  • Thomas Udem

Presentation materials

There are no materials yet.

  1. 42. First Observation of the He+ 1S-2S Transition in an Atomic Beam
    Prof. Kjeld Eikema (Vrije Universiteit Amsterdam)
    24/05/2023, 09:00
    precision measurements in fundamental physics, astrophysics and cosmology
    Invited Talk

    Abstract provided as attached pdf-file

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  2. 20. Towards High-Precision Spectroscopy of the 1S–2S Transition in He+
    Dr Akira Ozawa (Max-Planck-Institute of Quantum Optics)
    24/05/2023, 09:45
    precision measurements in fundamental physics, astrophysics and cosmology
    Oral presentation

    The energy levels of hydrogen-like atoms and ions are accurately described by bound-state quantum electrodynamics (QED). The frequency of the narrow 1s-2s transition of atomic hydrogen has been measured with a relative uncertainty of less than $10^{-14}$. In combination with other spectroscopic measurements of hydrogen and hydrogen-like atoms, the Rydberg constant and the proton charge radius...

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  3. 47. High-precision hyperfine structure measurements on hydrogen-like 3He and 9Be
    Stefan Dickopf
    24/05/2023, 10:10
    precision measurements in fundamental physics, astrophysics and cosmology
    Oral presentation
  4. 62. Theory of the magnetic moments and hyperfine splitting of $^3$He$^+$
    Bastian Sikora
    24/05/2023, 10:35
    quantum electrodynamics of bound systems
    Oral presentation

    abstract provided as attached pdf-file

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